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#551 2020-03-25 09:50:52

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 18,368

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

Mars does not orbit the sun at a constant speed along its path and at aphelion its at its slowest and as it swings back around its starting to move faster as it approaches the sun. The second image in post 543 has the ls marked on it.

edit:
Mars Calendar

Mars' elliptical orbit makes its distance from the Sun change with time, and also makes it speed up and slow down in its orbit. Mars is at aphelion (its greatest distance from the Sun, 249 million kilometers, where it moves most slowly) at Ls = 70°, near the northern summer solstice, and at perihelion (least distance from the Sun, 207 million kilometers, where it moves fastest) at Ls = 250°, near the southern summer solstice. The Mars dust storm season begins just after perihelion at around Ls = 260°.

Page contains table for mars seasons and dates to be able to calculate its position as I did before with the julian number count.

The mars day has to do with its rotation and not its movement around the sun of which if the days length of time was changing at the same rate then I would see that we are off but thats not the case. The only means to tell if day to orbit are different is to look at it with a telescope to view an identifiable mark on mars to view the time of rotation and movement amount around the sun.

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#552 2020-03-25 15:12:03

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

For SpaceNut re #543

Thanks for including the diagrams.  For some reason, only the first one showed up when I first looked at #543.

it's possible you were still working on the post when I looked at it.

Your encouragement to look again revealed the diagram showing the eccentricity of the orbit, and most helpfully, relative durations of the segments. 

Here's a question for you ... where do you think the planet is on the diagram showing eccentricity?

To help me with your answer, consider the diagram as a clock, and give the location (if you can) using time designation.

Thanks!
(th)

Last edited by tahanson43206 (2020-03-25 17:42:31)

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#553 2020-03-25 17:40:13

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

For SpaceNut re #543 Diagram #3 mars-seasons

This diagram appears to show that the period of the orbit covered in the past terrestrial year was spent in the apogee portion of the orbit.

The clue that I am noticing is the label of Month 6 (according to the astronomical 12 month calendar).

Month 6 on the diagram may correspond to the Month 6 given in the French web site.

If the situation in reality is as shown by the diagram, the speed of the planet should dramatically increase as it enters the perigee portion of the orbit.

What is impossible for (me at least) to know is what the software on the French site is going to do with longitude as the computations enter the coming period.

In the absence of contact from the French site, the only thing to do is to continue tracking the web site to see what happens.

I added the URL for the astronomical position of Mars to the daily post: https://theskylive.com/mars-tracker

(th)

Last edited by tahanson43206 (2020-03-25 18:26:21)

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#554 2020-03-25 20:09:53

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 18,368

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

Here is some more from the link I did in the above post edit.
Mars year   
Spring equinox     (Ls = 0°)      Mar 23 2019
Summer solstice   (Ls = 90°)      Oct 08 2019
Autumnal equinox (Ls = 180°) Apr 08 2020   
Winter solstice     (Ls = 270°) Sep 02 2020
Spring equinox     (Ls = 0°)      Feb 07 2021

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#555 2020-03-26 05:53:32

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

For SpaceNut re #554

Thank you for pulling those dates out of the references!

April 8th (on earth) looks about right for a match with the French web site.   They are showing Longitude 172.3 on Sol 359 today.

180 minus 172.3 is 7.7 degrees to cover.  At a daily rate of .525 degrees per day (if orbit were circular) it would take 14?15 days.

April 8th is 13 days from now, so we are in the ballpark.

I've decided to add the computed distance of Mars to the Sun to the daily report.  This will show if we are indeed moving into the perigee of the orbit.

This entire exercise is based upon arbitrary decisions made by a small number of astronomers, and then accepted (as nearly as I can tell) by the community.

Adding the new (computed) distance data from the new source will serve as a needed check on the performance of the software on the French web site.

The purpose of this exercise over the past Earth year has been to confirm that the proposed business calendar for Mars is suitable, and I am increasingly persuaded that the design is on the right track.  The calendar is simple, easy to understand, easy to use and (most of all) easy to keep aligned with the astronomical calendar at year end, when whatever difference exists is simply absorbed into a longer New Year's Day.

Thanks again for your support of this undertaking!

(th)

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#556 2020-03-26 06:11:46

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 172.3   Sol Number: 359  Change is +.7 degrees <<== This is the first change above .6

Previous SL: 171.6      Previous Sol: 358

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.
Distance of Mars from the Sun is given by this web site in kilometers: 221,793,740
Previous distance of Mars from the Sun in the previous report in km: ........

Sol 359 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 13
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 359 is Wednesday in the Proposed calendar for Mars. 

The Next New Year on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

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#557 2020-03-26 08:19:27

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 18,368

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

The issues of pin pointing any object relative to the central point is the sun is the fact to which part of any viewing point will be obscured by it as it swings around it. We also do not have any stationary location outward to observe the planets path either. To do the best observation of these types of motion would require 3 synchronous points that could hold there observing point without change. Any object will in time be pulled towards the suns magnetic field from a stationary location even at father distances beyond pluto.
We have used the 3 satelites linked by laser to detect gravity waves so we know how to do this.

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#558 2020-03-26 10:39:13

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

I am happy to be able to post this courteous reply from an administrator of the French web site used for the daily Martian Calendar report:

From: Francois Forget <francois.forget@lmd.jussieu.fr>


Sorry I could not test the newmars.com site and calendar. What I can tell you is that our calculator has been heavily tested and is accurate with regard to the calculation of Solar Longitude Ls (the angle on the orbit starting at Ls=0° after spring equinox). It is not complex, but note that there is no analytical formula to accurately compute Ls from time (sol). One must resolve an implicit function, but Newton already designed a method in the 18th century...

Also in the Mars science/space mission community we are now all using the calendar that you can see on our web page, counting Mars years after april 11 1955 starting at Ls=0°. Today is Martian year 35, Ls=172.3° (sol 359).

On a given days we devide the martian day (sols) in 24 to use Martian hours. Then on Mars it is important to distinguish True Solar Local Time and Mean Solar Local Time...

With best regards,

Francois

We will see soon enough if Monsieur Forget's confidence in his web site is justified.  The planet will need to complete more than 180 degrees of longitude in the next 668-359 (ie, 309) Sols.   

Edit#1: The rate of longitudinal progression will need to average .56 (and change) for the year to complete on time.  That means the rounding of the presentation on the French web site should show .6 every other Earth day.

(th)

Last edited by tahanson43206 (2020-03-27 04:29:21)

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#559 2020-03-27 04:40:25

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 172.9   Sol Number: 360  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 172.3      Previous Sol: 359

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.
Distance of Mars from the Sun is given by this web site in kilometers: 221,613,140 Difference: 180,600 km
Previous distance of Mars from the Sun in the previous report in km: 221,793,740

Sol 360 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 13
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 360 is Thursday in the Proposed calendar for Mars. 

The Next New Year on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

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#560 2020-03-28 07:12:56

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 173.4   Sol Number: 361  Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 172.9     Previous Sol: 360

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.
Distance of Mars from the Sun is given by this web site in kilometers: 221,401.872 Difference: -211,268 km
Previous distance of Mars from the Sun in the previous report in km: 221,613,140 Previous difference: -180,600 km

Sol 361 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 13
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 361 is Friday in the Proposed calendar for Mars. 

The Next New Year on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

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#561 2020-03-29 07:03:29

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 174.0   Sol Number: 362  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 173.4     Previous Sol: 361

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.
Distance of Mars from the Sun is given by this web site in kilometers: 221,401.872 Difference: -211,268 km
Previous distance of Mars from the Sun in the previous report in km: 221,613,140 Previous difference: -180,600 km

Sol 362 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 13 extends from Sol 335 through 362. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 13
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 362 is Saturday in the Proposed calendar for Mars.   <<== Last day of Month 13

The Next New Year on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 13 of 24: This is the first month of the 3rd Quarter and 2nd Half

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#562 2020-03-30 07:20:37

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 174.5   Sol Number: 363  Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 174.0     Previous Sol: 362

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.
Distance of Mars from the Sun is given by this web site in kilometers: 221,020,182 Difference: -381,690 km
Previous distance of Mars from the Sun in the previous report in km: 221,401.872 Previous difference: -211,268 km

Sol 363 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 363 is Sunday in the Proposed calendar for Mars.   <<== First day of Month 14

The Next New Year on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257


Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

Last edited by tahanson43206 (2020-03-30 07:22:09)

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#563 2020-03-31 07:38:23

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 175.1   Sol Number: 364  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 174.5     Previous Sol: 363

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.
Distance of Mars from the Sun is given by this web site in kilometers: 220,828,047 Difference: -192,135 km
Previous distance of Mars from the Sun in the previous report in km: 221,020,182 Difference: -381,690 km

Sol 364 is in Month 13 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 364 is Monday in the Proposed calendar for Mars.

The Next New Year on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257


Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

Last edited by tahanson43206 (2020-03-31 07:39:17)

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#564 2020-04-01 07:04:46

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 175.6   Sol Number: 365  Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 175.1     Previous Sol: 364

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.
Distance of Mars from the Sun is given by this web site in kilometers: 220,643,036 Difference: -185011 km
Previous distance of Mars from the Sun in the previous report in km: 220,828,047 Difference: -192,135 km

Sol 365 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 365 is Tuesday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

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#565 2020-04-02 07:44:53

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 176.2   Sol Number: 366  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 175.6     Previous Sol: 365

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.
Distance of Mars from the Sun is given by this web site in kilometers: 220,448,695 Difference: -194341 km
Previous distance of Mars from the Sun in the previous report in km: 220,643,036 Difference: -185011 km

Sol 366 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 366 is Wednesday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

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#566 2020-04-02 08:32:22

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 18,368

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

In about 6 days Mars will be half way around along Mars yearly path around the sun on a voyage that man would like to be a part of someday in the future to live, see and feel the seasons of that new lifes experiences while on a journey for man's birth to the solar system.

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#567 2020-04-03 04:36:56

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 176.7   Sol Number: 367  Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 176.2     Previous Sol: 366

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.
Distance of Mars from the Sun is given by this web site in kilometers: 220,284,693 Difference -164002 km
Previous distance of Mars from the Sun in the previous report in km: 220,448,695 Difference: -194341 km

Sol 367 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 367 is Thursday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

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#568 2020-04-04 09:25:57

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 177.3   Sol Number: 368  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 176.7     Previous Sol: 367

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Distance of Mars from the Sun is given by this web site in kilometers: 220,059,542 Difference -225151
Previous distance of Mars from the Sun in the previous report in km: 220,284,693 Difference -164002 km

Sol 368 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 368 is Friday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

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#569 2020-04-05 05:01:47

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 177.9   Sol Number: 369  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 177.3     Previous Sol: 368

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Distance of Mars from the Sun is given by this web site in kilometers: 219,906,334 Difference: -153208
Previous distance of Mars from the Sun in the previous report in km: 220,059,542 Difference -225151

Sol 369 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 369 is Saturday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

Offline

#570 2020-04-06 05:35:22

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 178.4   Sol Number: 370  Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 177.9     Previous Sol: 369

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Distance of Mars from the Sun is given by this web site in kilometers: 219,715,932 Difference: -190402
Previous distance of Mars from the Sun in the previous report in km: 219,906,334 Difference: -153208

Sol 370 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 370 is Sunday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

Offline

#571 Yesterday 06:10:37

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 8, 2020
Solar Longitude: 179.0   Sol Number: 371  Change is +.6 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 178.4     Previous Sol: 370

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Distance of Mars from the Sun is given by this web site in kilometers: 219,524,318 km Difference -191614
Previous distance of Mars from the Sun in the previous report in km: 219,715,932 Difference: -190402

Sol 371 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 371 is Monday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

Offline

#572 Today 06:46:33

tahanson43206
Member
Registered: 2018-04-27
Posts: 2,202

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

Today on Mars:  <<-- Days of the week are out of alignment with those on Earth due to the longer Martian Day. September 2020 next alignment estimate.

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

Martian Year: 35        Martian Month in 12 month format: 6 <<== Transition to astronomical month 7 is predicted for Earth April 9, 2020
Solar Longitude: 179.5   Sol Number: 372  Change is +.5 degrees <<== Must average .56+ to complete orbit in 668 Sols

Previous SL: 179.0     Previous Sol: 371

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.
Note: The difference in kilometers shown below is NOT computed at the same time every Earth day.
Distance of Mars from the Sun is given by this web site in kilometers: 219,334,459 km Difference -189859
Previous distance of Mars from the Sun in the previous report in km: 219,524,318 km Difference -191614

Sol 372 is in Month 14 of a Proposed 24 month calendar. See Post 19 of Holidays topic for a summary.
Month 14 extends from Sol 363 through 390. See post 82 of Holidays topic for current details. <<== There are 28 days in Month 14
Direct path to source: http://newmars.com/forums/viewtopic.php … 57#p154257
Sol 372 is Tuesday in the Proposed calendar for Mars.

The Next New Year's on Mars will occur when Solar Longitude reaches 360 degrees.
The next Skip Day will occur in April on Earth. A Skip Day occurs when the longer Mars Sol reaches 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

For current weather on Mars at Insight location, see:
https://mars.nasa.gov/insight/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 in this post:  http://newmars.com/forums/viewtopic.php … 57#p154257

Month 14 of 24: Second month of the 3rd Quarter and 2nd Half

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#573 Today 08:36:28

SpaceNut
Administrator
From: New Hampshire
Registered: 2004-07-22
Posts: 18,368

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

Tomorrow will mark the half way trip around the sun for Mars. Last image in post 543 shows that mars is lagging where earth is positioned and much like earth is entering spring, so is mars.

Mars 2020 rover, which would notionally lift off in July or August of 2021 and arrive at Mars in February 2021.

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