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#1001 2021-04-11 05:48:21

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/05 Thursday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/11 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One day note: This is the last day of Astronomical Month 1

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 1 <<== The Astronomical month will increment when longitude reaches 30 degrees

Solar Longitude: 029.7  Sol Number: 61  Change in degrees is +.4
Previous SL:      029.3  Previous Sol: 60

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,061,650 km [22.6 km/s] Difference is +118191 <= 5372 km/hour at 7.0 on 04/11 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   242,943,459 km [22.6 km/s] Difference is +139317 <= 5421 km/hour at 9.0 on 04/10 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   242,804,142 km [22.6 km/s] Difference is +124687 <= 5469 km/hour at 7.3 on 04/09 (time:7:18)

Next Up: a trio: Stars TYC 1852-1576-1, 1852-1726-1, 1852-1729-1 in path Day 0 about 10 hours ahead
Galaxy PGC 1712963 RA 5h 26m 23.9s below path Day about 4 hours past Mars ... might still be in view tomorrow

Note: The curve of the path of Mars as seen against the background of stars is now a line trending slightly upward and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 277,525,007
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 061 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 061 is Thursday  in the Proposed calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1002 2021-04-11 10:25:04

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

For SpaceNut ...

A relative sent this link: https://www.foxnews.com/science/nasa-ge … nding-site

The article appears to indicate that NASA has opened a new weather reporting station on Mars, at the Perseverance landing site.

If you think something should be added to the daily calendar update, please show what you'd like.

In addition, there was an update when Insight stopped sending and I understand it may be back in business.

If so, and if you want that in the daily report, please post that as well.

(th)

Online

#1003 2021-04-12 07:19:54

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/06 Friday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/12 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: This is the first day of Astronomical Month 2

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 30 degrees

Solar Longitude: 030.2  Sol Number: 62  Change in degrees is +.5
Previous SL:      029.7  Previous Sol: 61

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,199,058 km [22.6 km/s] Difference is +137408 <= 5326 km/hour at 8.8 on 04/12 (time:8:48)
Distance: Mars >> Sun per theskylive.com:   243,061,650 km [22.6 km/s] Difference is +118191 <= 5372 km/hour at 7.0 on 04/11 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   242,943,459 km [22.6 km/s] Difference is +139317 <= 5421 km/hour at 9.0 on 04/10 (time:9:00)

Next up:Galaxy well below path PGC 1712145 about 5 hours ahead - should still be in view tomorrow
Next up:Star TYC 1852-1017-1 Magnitude 9.59 Above path Day 0 about 10 hours ahead
Stars TYC 1852-1576-1, 1852-1726-1, 1852-1729-1 in path Day 1 about 20 hours behind ... last day for this grouping

Note: The curve of the path of Mars as seen against the background of stars is now a line trending slightly upward and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 278,929,929
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 062 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 062 is Friday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1004 2021-04-13 06:53:04

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/07 Saturday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/13 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 030.7  Sol Number: 63  Change in degrees is +.5
Previous SL:      030.2  Previous Sol: 62

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,321,323 km [22.6 km/s] Difference is +122265 <= 5270 km/hour at 8.0 on 04/13 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   243,199,058 km [22.6 km/s] Difference is +137408 <= 5326 km/hour at 8.8 on 04/12 (time:8:48)
Distance: Mars >> Sun per theskylive.com:   243,061,650 km [22.6 km/s] Difference is +118191 <= 5372 km/hour at 7.0 on 04/11 (time:7:00)

Next up: A dinky! TYC 1852-108-1 Magnitude 10.51 just below path Day 0 about 10 hours ahead. Definitely good for another day.
Next up: A boomer! HIP 26062 Magnitude 6.97 Well below path Day 0 about 12 hours ahead ... should still be visible tomorrow
Galaxy well below path PGC 1712145 Day 1 still in view - last day for 18712145
Star TYC 1852-1017-1 Magnitude 9.59 Above path Day 1 about 14 hours behind - last day for 1017

Note: The curve of the path of Mars as seen against the background of stars is now a line trending slightly upward and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 280,222,255
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 063 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 063 is Saturday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1005 2021-04-14 06:04:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/08 Sunday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/14 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 031.1  Sol Number: 64  Change in degrees is +.4
Previous SL:      030.7  Previous Sol: 63

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,441,504 km [22.5 km/s] Difference is +120181 <= 5225 km/hour at 7.0 on 04/14 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   243,321,323 km [22.6 km/s] Difference is +122265 <= 5270 km/hour at 8.0 on 04/13 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   243,199,058 km [22.6 km/s] Difference is +137408 <= 5326 km/hour at 8.8 on 04/12 (time:8:48)

Next up: Star TYC 1865-1621-1 Magnitude 10.96 in path Day 0 about 15 hours ahead
Next up: Star HIP 26295 Magnitude 10.59 below path Day 0 about 10 hours ahead
A dinky! TYC 1852-108-1 Magnitude 10.51 just below path Day 1 - about 15 hours past - last day for 108
A boomer! HIP 26062 Magnitude 6.97 Well below path Day 1 Still in view - about 12 hours past Mars - last day for 26062 - thanks for brightening the scene

Note: The curve of the path of Mars as seen against the background of stars is now a line trending very slightly upward and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 280,222,255
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 064 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 064 is Sunday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1006 2021-04-15 06:41:04

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/09 Monday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/15 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 031.6  Sol Number: 65  Change in degrees is +.5
Previous SL:      031.1  Previous Sol: 64

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,573,452 km [22.5 km/s] Difference is +131948 <= 5174 km/hour at 8.5 on 04/15 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   243,441,504 km [22.5 km/s] Difference is +120181 <= 5225 km/hour at 7.0 on 04/14 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   243,321,323 km [22.6 km/s] Difference is +122265 <= 5270 km/hour at 8.0 on 04/13 (time:8:00)

Next up: Star 1865-1460-1 Magnitude 11.63 in path Day 0 about 15 hours ahead
Star TYC 1865-1621-1 Magnitude 10.96 in path Day 1 exactly 10 hours behind - last day for 1621
Star HIP 26295 Magnitude 10.59 below path Day 1 about 15 hours behind - last day for 26295

Note: The curve of the path of Mars as seen against the background of stars is now a line trending very slightly upward and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 282,826,788
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 065 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 065 is Monday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1007 2021-04-16 06:17:28

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/10 Tuesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/16 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 032.0  Sol Number: 66  Change in degrees is +.4
Previous SL:      031.6  Previous Sol: 65

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,690,279 km [22.5 km/s] Difference is +116827 <= 5124 km/hour at 7.3 on 04/16 (time:7:18)
Distance: Mars >> Sun per theskylive.com:   243,573,452 km [22.5 km/s] Difference is +131948 <= 5174 km/hour at 8.5 on 04/15 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   243,441,504 km [22.5 km/s] Difference is +120181 <= 5225 km/hour at 7.0 on 04/14 (time:7:00)

Next up: Star TYC 1865-1499-1 Magnitude 12.15 Below path Day 0 about 20 hours ahead
Star 1865-1460-1 Magnitude 11.63 in path Day 1 about 10 hours behind - last day for 1460

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 284,106,809
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 066 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 066 is Tuesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1008 2021-04-16 19:52:51

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,401

Re: Martian Calender - I have created a martian calender...

I was looking at the atmospheric pressure between the insight and curiosity and there is at minimum 100 Pa difference

Offline

#1009 2021-04-17 08:11:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/11 Wednesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/17 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 032.5  Sol Number: 67  Change in degrees is +.5
Previous SL:      032.0  Previous Sol: 66

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,825,697 km [22.5 km/s] Difference is +135418 <= 5072 km/hour at A.0 on 04/17 (time:10:0)
Distance: Mars >> Sun per theskylive.com:   243,690,279 km [22.5 km/s] Difference is +116827 <= 5124 km/hour at 7.3 on 04/16 (time:7:18)
Distance: Mars >> Sun per theskylive.com:   243,573,452 km [22.5 km/s] Difference is +131948 <= 5174 km/hour at 8.5 on 04/15 (time:8:30)

Note galaxy's in view: None
Next up a small Boomer: (Not HIP) TYC 1856-1674-1 Magnitude 7.75 Just above path Day 0 about 15 hours ahead. Might be visible 2 days. Iffy.
Star TYC 1865-1499-1 Magnitude 12.15 Below path Day 1 about 5 hours behind - last day for 1499

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 285,502,677
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 067 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 067 is Wednesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1010 2021-04-18 07:53:16

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/12 Thursday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/18 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 032.9  Sol Number: 68  Change in degrees is +.4
Previous SL:      032.5  Previous Sol: 67

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   243,943,678 km [22.5 km/s] Difference is +117921 <= 5020 km/hour at 9.5 on 04/18 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   243,825,697 km [22.5 km/s] Difference is +135418 <= 5072 km/hour at A.0 on 04/17 (time:10:0)
Distance: Mars >> Sun per theskylive.com:   243,690,279 km [22.5 km/s] Difference is +116827 <= 5124 km/hour at 7.3 on 04/16 (time:7:18)

Next up: Star TYC 1866-1564-1 Magnitude 9.67 Above path Day 0 about 20 hours ahead - might be good for two days
Next up: a Boomer ** just ** out of view to East HIP 27378 RA 5h 47m 56.1s Magnitude 6.60 - may be visible at bottom of view tomorrow morning
Next up: Galaxy PGC 136059 RA 5h 47m 19.5s well below path Day 0 about 12 hours ahead
A small Boomer: (Not HIP) TYC 1856-1674-1 Magnitude 7.75 Just above path Day 1 still in view about 8 hours past Mars

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 285,502,677
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 068 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 068 is Thursday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1011 2021-04-19 07:01:22

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/13 Friday <<-- Days of the week are not in alignment with Earth. 

Special Note: (courtesy of Calliban)

Today marks the first helicopter flight on Mars and the first powered flight of any kind on Mars.  Certainly an entry for any kind of Martian history book I would say.

Interested in space science, engineering and technology.

Today on Earth: 2021/04/19 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 1 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 033.4  Sol Number: 69  Change in degrees is +.5
Previous SL:      032.9  Previous Sol: 68

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,056,445 km [22.5 km/s] Difference is +112767 <= 4967 km/hour at 8.2 on 04/19 (time:8:12)
Distance: Mars >> Sun per theskylive.com:   243,943,678 km [22.5 km/s] Difference is +117921 <= 5020 km/hour at 9.5 on 04/18 (time:9:30)
Distance: Mars >> Sun per theskylive.com:   243,825,697 km [22.5 km/s] Difference is +135418 <= 5072 km/hour at A.0 on 04/17 (time:10:0)

Next up: Star TYC 1866-1763-1 Magnitude 10.55 above path (path is now horizontal) Day 0 about 16 hours ahead
Star TYC 1866-1564-1 Magnitude 9.67 Above path Day 1 Just past Mars - last day for 1564
Star: a Boomer ** just ** out of view to East on Day 0 - Day 1 Now visible as HIP 27378 Magnitude 6.60
Galaxy PGC 136059 RA 5h 47m 19.5s well below path Day 1 Still visible - last day for 136059

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 285,502,677
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 15 and 16 minutes. Communications delay would be 30+ minutes round trip. [15:270,000,000] [16:288,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 069 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 069 is Friday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1012 2021-04-19 07:49:45

Calliban
Member
From: Northern England, UK
Registered: 2019-08-18
Posts: 1,201

Re: Martian Calender - I have created a martian calender...

Today marks the first helicopter flight on Mars and the first powered flight of any kind on Mars.  Certainly an entry for any kind of Martian history book I would say.


Interested in space science, engineering and technology.

Offline

#1013 2021-04-19 09:16:40

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

For Calliban re #1012

Thank you for choosing the calendar topic for this important announcement !!!

I have updated the Today post to include it!

(th)

Online

#1014 2021-04-20 06:57:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/14 Saturday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/20 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 033.9  Sol Number: 70  Change in degrees is +.5
Previous SL:      033.4  Previous Sol: 69

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,176,475 km [22.5 km/s] Difference is +120030 <= 4919 km/hour at 8.6 on 04/20 (time:8:36)
Distance: Mars >> Sun per theskylive.com:   244,056,445 km [22.5 km/s] Difference is +112767 <= 4967 km/hour at 8.2 on 04/19 (time:8:12)
Distance: Mars >> Sun per theskylive.com:   243,943,678 km [22.5 km/s] Difference is +117921 <= 5020 km/hour at 9.5 on 04/18 (time:9:30)

Next up: Star TYC 1867-1031-1 Magnitude 10.21 above path Day 0 About 20 hours ahead
There are no galaxies or Boomers in today's view
Star TYC 1866-1763-1 Magnitude 10.55 above path (path is now horizontal) Day 1 about 8 hours behind - last day for 1763

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 289,285,448
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 070 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 070 is Saturday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1015 2021-04-21 07:13:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/15 Sunday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/21 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 034.3  Sol Number: 71  Change in degrees is +.4
Previous SL:      033.9  Previous Sol: 70

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,290,377 km [22.5 km/s] Difference is +113902 <= 4968 km/hour at 8.0 on 04/21 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   244,176,475 km [22.5 km/s] Difference is +120030 <= 4919 km/hour at 8.6 on 04/20 (time:8:36)
Distance: Mars >> Sun per theskylive.com:   244,056,445 km [22.5 km/s] Difference is +112767 <= 4967 km/hour at 8.2 on 04/19 (time:8:12)

Next up: Star TYC 1867-853-1 Magnitude 9.94 well above path and Day 0 about 12 hours ahead
There is a small Boomer in the scene: HIP 27847 Magnitude 7.41 above path and abreast of Mars. 27847 is likely to be visible tomorrow
Star TYC 1867-1031-1 Magnitude 10.21 above path Day 1 about 4 hours past ... 1031 might be visible tomorrow

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 289,285,448
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 071 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 071 is Sunday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1016 2021-04-22 08:27:53

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/16 Monday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/22 Thursday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

One Day Note: Today is Earth Day on Planet Earth

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 034.8  Sol Number: 72  Change in degrees is +.5
Previous SL:      034.3  Previous Sol: 71

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,410,777 km [22.4 km/s] Difference is +120410 <= 4816 km/hour at 9.0 on 04/22 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   244,290,377 km [22.5 km/s] Difference is +113902 <= 4968 km/hour at 8.0 on 04/21 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   244,176,475 km [22.5 km/s] Difference is +120030 <= 4919 km/hour at 8.6 on 04/20 (time:8:36)

Next up: TYC 1867-714-1 Magnitude 9.26 Above path Day 0 about 10 hours ahead - might be good for two days
Star TYC 1867-853-1 Magnitude 9.94 well above path and Day 1 Still visible about 12 hours behind ... last day for 853
There is a small Boomer in the scene: HIP 27847 Magnitude 7.41 above path and abreast of Mars. 27847 is Still visible on Day 1 at the edge of the view

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 289,285,448
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 072 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 072 is Monday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1017 2021-04-23 04:51:44

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/17 Tuesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/23 Friday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 035.2  Sol Number: 73  Change in degrees is +.4
Previous SL:      034.8  Previous Sol: 72

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,513,222 km [22.4 km/s] Difference is +102445 <= 4765 km/hour at 6.5 on 04/23 (time:6:30)
Distance: Mars >> Sun per theskylive.com:   244,410,777 km [22.4 km/s] Difference is +120410 <= 4816 km/hour at 9.0 on 04/22 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   244,290,377 km [22.5 km/s] Difference is +113902 <= 4968 km/hour at 8.0 on 04/21 (time:8:00)

Next up: busy section of sky - many choices Star TYC 1863-333-1 Magnitude 8.69 just  above path Day 0 about 15 hours ahead
TYC 1867-714-1 Magnitude 9.26 Above path Day 1 about 12 hours behind - last day for 714

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 289,285,448
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 073 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 073 is Tuesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1018 2021-04-24 08:53:51

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/18 Wednesday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/24 Saturday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 035.7  Sol Number: 74  Change in degrees is +.5
Previous SL:      035.2  Previous Sol: 73

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,638,094 km [22.4 km/s] Difference is +124872 <= 4712 km/hour at 9.0 on 04/24 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   244,513,222 km [22.4 km/s] Difference is +102445 <= 4765 km/hour at 6.5 on 04/23 (time:6:30)
Distance: Mars >> Sun per theskylive.com:   244,410,777 km [22.4 km/s] Difference is +120410 <= 4816 km/hour at 9.0 on 04/22 (time:9:00)

Next up: Star TYC 1868-489-1 Magnitude 9.41 just above path Day 0 10 hours ahead
Star TYC 1863-333-1 Magnitude 8.69 just  above path Day 1 about 12 hours past - last day for 333

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 294,446,686
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 074 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 074 is Wednesday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1019 2021-04-25 06:25:25

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/19 Thursday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/25 Sunday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 036.1  Sol Number: 75  Change in degrees is +.4
Previous SL:      035.7  Previous Sol: 74

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,745,233 km [22.4 km/s] Difference is +107139 <= 4658 km/hour at 8.0 on 04/25 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   244,638,094 km [22.4 km/s] Difference is +124872 <= 4712 km/hour at 9.0 on 04/24 (time:9:00)
Distance: Mars >> Sun per theskylive.com:   244,513,222 km [22.4 km/s] Difference is +102445 <= 4765 km/hour at 6.5 on 04/23 (time:6:30)

Next up: Galaxy PGC 1723531 RA 6h 4m 40.2s above path Day 0 about 5 hours ahead
Next up: Galaxy PGC 18381 RA 6h 4m 54.7s below path Day 0 about 6 hours ahead
Star TYC 1868-489-1 Magnitude 9.41 just above path Day 1 about 11 hours behind - last day for 489

Note: The curve of the path of Mars as seen against the background of stars is now a line trending almost horizontal and East as seen from Earth
In recent days, the curve has been slowly bending down toward horizontal.  Earth Distance at last update (here) was km 295,567,522
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 075 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 075 is Thursday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1020 2021-04-26 05:41:52

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/20 Friday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/26 Monday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 036.6  Sol Number: 76  Change in degrees is +.5
Previous SL:      036.1  Previous Sol: 75

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,851,210 km [22.4 km/s] Difference is +105977 <= 4607 km/hour at 7.0 on 04/26 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   244,745,233 km [22.4 km/s] Difference is +107139 <= 4658 km/hour at 8.0 on 04/25 (time:8:00)
Distance: Mars >> Sun per theskylive.com:   244,638,094 km [22.4 km/s] Difference is +124872 <= 4712 km/hour at 9.0 on 04/24 (time:9:00)

Next up: A tiny Boomer - HIP 29091 above path Magnitude 10.08 Day 0 about 14 hours ahead.
Galaxy PGC 1723531 RA 6h 4m 40.2s above path Day 1 about 16 hours hehind - last day for 1723531
Galaxy PGC 18381 RA 6h 4m 54.7s below path Day 1 about 16 hours behind - last day for 18381

Note: The curve of the path of Mars as seen against the background of stars is now a line trending slightly down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update (here) was km 296,773,545
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 076 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 076 is Friday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1021 2021-04-27 05:45:36

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/21 Saturday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/27 Tuesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 037.0  Sol Number: 77  Change in degrees is +.4
Previous SL:      036.6  Previous Sol: 76

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   244,960,546 km [22.4 km/s] Difference is +109336 <= 4556 km/hour at 7.0 on 04/27 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   244,851,210 km [22.4 km/s] Difference is +105977 <= 4607 km/hour at 7.0 on 04/26 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   244,745,233 km [22.4 km/s] Difference is +107139 <= 4658 km/hour at 8.0 on 04/25 (time:8:00)

We have another Tiny Boomer at hand: HIP 29334 Magnitude 8.32 directly in path Day 0 about 15 hours ahead
HIP 29091 above path Magnitude 10.08 Day 1 about 12 hours behind - last day for 29091

Note: The curve of the path of Mars as seen against the background of stars is now a line trending slightly down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update (here) was km 296,773,545
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 077 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 077 is Saturday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1022 2021-04-27 18:04:55

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,401

Re: Martian Calender - I have created a martian calender...

This now topic has another purpose as for day to day planning based on where mars is as well as for the seasons....

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#1023 2021-04-27 18:13:11

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

For SpaceNut re #1022 ... thanks for continuing to think about how this daily calendar post might be useful.

One benefit I had not anticipated is that I am now allowing myself to "see" the sky beyond Mars, thanks to the design of the French web site I am using to fix the position of Mars each day.  The view is from Earth, and some incredible magnification, on the order of the Hubble Space Telescope.  There are three surveys in the view most days.  One is the common TYC survey, which covers lower magnitude stars.  One is the HIP survey which covers brighter stars, including ones I call "Boomers" in the daily reports.  And the third is the galaxy survey, but galaxies are not in the view every day.

By following Mars in it's orbit so closely, i am becoming "trained" in the increments of progress as the planet moves through the faster or slower phases as it is doing now.

I've known about the retrograde movement for a long time, but have not seen it in action until now, when it is clear and easy to follow in the daily sky view.

(th)

Online

#1024 2021-04-28 07:04:39

tahanson43206
Moderator
Registered: 2018-04-27
Posts: 7,676

Re: Martian Calender - I have created a martian calender...

Today on Mars: 0036/03/22 Sunday <<-- Days of the week are not in alignment with Earth. 

Today on Earth: 2021/04/28 Wednesday (Earth Date) Post Title: Today on Mars   [Perihelion occurred August 3, 2020 Earth Calendar]

Per http://www-mars.lmd.jussieu.fr/mars/tim … _time.html

Martian Year: 36  Martian Month in 12 month format: 2 <<== The Astronomical month will increment when longitude reaches 60 degrees

Solar Longitude: 037.5  Sol Number: 78  Change in degrees is +.5
Previous SL:      037.0  Previous Sol: 77

Note that Solar Longitude measurement varies as a function of location in orbit. 

Note#2: https://theskylive.com/mars-tracker  This web site shows the astronomical position of Mars.
Minus prefix means Mars is approaching the Sun.  Perihelion occurred at Ls 253 on Sol 485 - Earth Date 2020/08/03
Plus prefix means Mars is moving away from the Sun. Aphelion will occur near 70 degrees Ls (per www.planetary.org)

Note#3: The computations below are dependent upon both the computations provided by the reference web site and by accuracy of recording of the time of observations.  The calculations use tenths of hours.  The Sun Distance needs to be captured at the moment the time increments to a given tenth.

Distance: Mars >> Sun per theskylive.com:   245,075,358 km [22.4 km/s] Difference is +114812 <= 4502 km/hour at 8.5 on 04/28 (time:8:30)
Distance: Mars >> Sun per theskylive.com:   244,960,546 km [22.4 km/s] Difference is +109336 <= 4556 km/hour at 7.0 on 04/27 (time:7:00)
Distance: Mars >> Sun per theskylive.com:   244,851,210 km [22.4 km/s] Difference is +105977 <= 4607 km/hour at 7.0 on 04/26 (time:7:00)

Up next: Little Boomer HIP 29558 Magnitude 8.35 Below path Day 0 about 12 hours ahead
Up next: A Dinky: TYC 1881-1089-1 Magnitude 12 Above path Day 0 at left edge of view - might last two days
HIP 29334 Magnitude 8.32 directly in path Day 1 exactly 10 hours behind

Note: The curve of the path of Mars as seen against the background of stars is now a line trending slightly down and East as seen from Earth
In recent days, the curve has been slowly bending down through horizontal.  Earth Distance at last update (here) was km 299,314,671
Light travel in one second is (about) 300,000 kilometers. The distance covered in one minute is about 18,000,000 kilometers.
Light travel time today is between 16 and 17 minutes. Communications delay would be 32+ minutes round trip. [16:288,000,000] [17:306,000,000]

In his online interview with Dr. Zubrin at the 2020 Mars Conference, Elon Musk reminded the audience that communications with Mars will necessarily include an intermediary station to handle traffic when the Sun is between Mars and Earth.  Communications delays in that circumstance will increase due to the extra distance to be covered.  Mr. Musk indicated he expects such communication will be handled by laser.  Location would be optimum at poles of solar plane.

Mars is executing the "Retrograde" movement as seen from Earth. Earth is passing "under" Mars.
Progress of Mars (as seen from Earth) is transitioning back to Eastward as the retrograde movement continues.
The online solar system display at the link below shows clearly how the Mars retrograde movement will occur in months ahead.
Retrograde movement started 2020/09/08 Sol 520

This web site offers an online model of the solar system: www.solarsystemscope.com  It requires Chrome 57, Firefox 52 or Safari 10.1

Sol 078 is in Month 03 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 03 extends from Sol 057 through 85. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 01
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 077 is Sunday  in the Proposed Business calendar for Mars.  <<== Skip day occurred March 30th on Earth ... next will occur in May on Earth

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees. <<== The current year on Mars is 36
Per www.planetary.org this occurred February 7, 2021 (on Earth). The new Mars Year is 36.

The next Skip Day will occur in May on Earth. A Skip Day occurs when the longer Mars Sol accumulates 24 Earth hours.
For those who may be following this proposed calendar closely, there exists a "feature" I had not anticipated.
Days of the week fall behind Earth due to the longer Sol, but they gain when Friday is omitted at the end of a Quarter
337 Earth days were observed to elapse in the 2020 weekday cycle. There were 7 week day transitions and 2 Quarter ends.

For current weather on Mars see:

   ***https://mars.nasa.gov/insight/weather/***
   ***Insights weather info has been suspended and now is directing to msl***

https://mars.nasa.gov/msl/weather/

Per SpaceNut: Here is another web page by NASA containing the latest news releases

https://mars.nasa.gov/news/?page=0&per_ … ope=Latest

All forum members are invited to post significant events for this day.
Events of interest will be ON Mars, or relate to Mars. Examples are launches, landings, discoveries

Recruiting text may be found at the bottom of this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 3 of 24  Quarter 1 of 4

Online

#1025 2021-04-28 19:52:46

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 23,401

Re: Martian Calender - I have created a martian calender...

Wondering a Mars 687 day calendar simular to julian would be of any benefit?
Martian solar days, are only 39 minutes and 35 seconds longer than Earth days, and there are 668 sols (687 Earth days) in a Martian year.
https://www.planetary.org/articles/mars-calendar
year 0036
LS    0038
so its 4/28/21 here on earth

Spring equinox ls 0000 is 02/07/21 21038
ls 0039 is 05/01/21 21121
Summer solstice Ls 0090 is 08/25/21
Autumnal equinox ls 0180 is 02/24/22 22055
Winter solstice Ls 0270 is 07/21/22
ls 0359 is 12/24/22 22358

https://www.calendarlabs.com/templates/ … dar-01.pdf

365-38= 327 + 358 = 685 earth days

Those extra minutes and seconds add up...
http://ops-alaska.com/time/suran/suran.htm

main-qimg-95fe2296599b5bd207b3316d85ee820d

Sure will be easier once we start using the mars calendar on mars to solve for the sol day we are on...

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