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#26 2022-09-13 03:56:29

Mars_B4_Moon
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Registered: 2006-03-23
Posts: 9,774

Re: LEO Space Debris

Vestigo Aerospace raises $375K in seed funding to spur deorbit systems

https://www.eurekalert.org/news-releases/964462

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#27 2022-09-13 22:09:13

SpaceNut
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Re: LEO Space Debris

Even if we get a means to achieve the end of debris removal; who will be paying for that task?

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#28 2022-09-15 09:00:48

Mars_B4_Moon
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Re: LEO Space Debris

‘Incredible’ fireball crosses sky over Scotland and Northern Ireland

https://www.theguardian.com/science/202 … rn-ireland

SpaceNut wrote:

who will be paying for that task?

Global Taxes to pay for the pollution of others?

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#29 2022-09-27 11:47:05

Mars_B4_Moon
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Re: LEO Space Debris

ClearSpace secures a major UK contract to help clean up space

https://www.spacedaily.com/reports/Clea … e_999.html

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#30 2022-10-25 16:59:35

Mars_B4_Moon
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Re: LEO Space Debris

The orbit of the ISS was changed to avoid collision with space junk

https://spacejournal.space/the-orbit-of … space-junk

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#31 2022-10-29 09:20:39

Mars_B4_Moon
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Re: LEO Space Debris

Russia's anti-satellite threat tests laws of war in space

https://www.reuters.com/world/russias-a … 022-10-28/

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#32 2023-02-10 12:19:25

Mars_B4_Moon
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Re: LEO Space Debris

A Russian Satellite Has Broken Into Pieces, Littering Debris in Space

https://www.universetoday.com/159997/a- … -in-space/

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#33 2023-03-09 05:13:44

Mars_B4_Moon
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Re: LEO Space Debris

ISS dodges commercial imaging satellite
https://spacenews.com/iss-dodges-commer … satellite/

he International Space Station adjusted its orbit March 6 to avoid a close approach by an imaging satellite operated by Satellogic, the latest evidence of growing congestion in low Earth orbit.

NASA said in a March 6 blog post that the Progress MS-22 spacecraft docked to the station fired its thrusters for a little more than six minutes, raising the station’s orbit to move out of the way of what the agency called an Earth observation satellite. According to Roscosmos, the maneuver, lasting 375.8 seconds, changed the station’s velocity by 0.7 meters per second.

NASA spokesperson Sandra Jones told SpaceNews March 7 that the spacecraft would have approached within about 2.7 kilometers of the station without the maneuver. About 20 minutes before the scheduled maneuver controllers received a “green update” about the close approach, meaning there was no risk to the station, but decided to proceed with the maneuver since the Progress’s thrusters were already enabled.

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#34 2023-03-09 07:37:37

tahanson43206
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Registered: 2018-04-27
Posts: 18,143

Re: LEO Space Debris

For Mars_B4_Moon re #33

Thank you for this timely addition to the topic.  In another topic, GW Johnson is laying out considerations for an On Orbit Refueling station.  I had advocated for GEO, but the comparative ease of implementation of the system at LEO are compelling.  However, the challenges of operation in a crowded LEO are going to be daunting. The proposed refueling station will grow to a size such that maneuvers such as the one you reported for ISS are not going to be practical.  In addition, the location of the station must be knowable in advance because this will be a commercial operation with very tight scheduling constraints.  Uploads of supplies (propellant and goods) will apparently have only a two minute window for retrieval by on-orbit tugs designed for the purpose.

The number of shipments of propellant and supplies will grow to thousands per year, as traffic to Solar System destinations increases.

It seems to me inevitable that some sort of UN scale traffic management system for LEO is needed, and we are probably years late in even thinking about that.

Even ** with ** a traffic management system, it seems to me that a heavy buffer plate needs to be in front of the refueling station to collect the inevitable small debris that comes into range.  It would be something like a mine sweeper in front of a large vessel in a dangerous port.

(th)

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#35 2023-03-09 18:51:07

SpaceNut
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From: New Hampshire
Registered: 2004-07-22
Posts: 29,310

Re: LEO Space Debris

yes an even Hubble is seeing the space x satellites and needs a boost.

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#36 2023-03-10 09:47:46

Mars_B4_Moon
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Posts: 9,774

Re: LEO Space Debris

More Satellites exploding another Project WestFord event coming?

There Are Now 100 Trillion Bits Of ‘Space Junk’ Circling Our Planet—And It’s About To Get A Lot Worse
https://www.forbes.com/sites/jamiecarte … lot-worse/

some bits of junk are small other debris might come down in several years time

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#37 2023-03-10 16:19:25

Mars_B4_Moon
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Re: LEO Space Debris

No borders in LEO

and one day the Moon and Mars could have debris problems,  but for now planet Earth can arrive first with a domino effect and feedback runaway feedback loop.


Legally binding global treaty needed to tackle space debris, say experts


https://www.theguardian.com/science/202 … orbit-junk

Scientists call for collective effort to protect Earth’s orbit from dangers posed by space junk

Kessler syndrome  might even answer a Fermi Paradox, the Kessler critical mass effect, collisional events cascading,  a scenario in which the density of objects in low Earth orbit LEO due to space pollution is high enough that collisions between objects could cause a cascade in which each collision generates space debris that increases the likelihood of further collisions

The destruction of the Kosmos 1408 satellite by a Russian ASAT missile in Novembe 2021 created a large debris cloud, with 1500 pieces of debris being tracked and an estimated hundreds of thousands of pieces too small to track. Since the satellite was in a polar orbit, and its debris has spread out between the altitudes of 300 km and 1000 km, experts thought it potentially collide with any LEO satellite, including the International Space Station and the Chinese Space Station Tiangong.

https://arstechnica.com/science/2021/11 … ris-cloud/

https://www.bbc.co.uk/news/science-environment-59307862

https://www.theverge.com/2021/11/15/227 … ion-debris

https://www.theatlantic.com/past/docs/i … l/junk.htm

Last edited by Mars_B4_Moon (2023-03-10 16:28:02)

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#38 2023-05-10 04:37:45

Mars_B4_Moon
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Re: LEO Space Debris

We also have discussion on the growing issues of Space Junk at the Moon and Mars

Swiss plan to launch an "active debris removal mission"

ClearSpace books Vega C for 2026 de-orbit mission
https://spacenews.com/clearspace-books- … t-mission/

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#39 2023-06-23 05:30:00

Mars_B4_Moon
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Registered: 2006-03-23
Posts: 9,774

Re: LEO Space Debris

A new mission will grab dead satellites and push them into the atmosphere to burn up

https://phys.org/news/2023-06-mission-d … phere.html

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#40 2023-08-05 04:57:39

Mars_B4_Moon
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Re: LEO Space Debris

Follow a Simulated Journey of the Destruction of ESA’s Aeolus Mission

https://www.universetoday.com/162672/fo … ore-162672

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#41 2023-08-22 12:24:17

Mars_B4_Moon
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Re: LEO Space Debris

Objects detected in the vicinity of ClearSpace-1 debris removal mission target

https://www.esa.int/Space_Safety/Object … ion_target

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#42 2023-08-30 16:13:47

Mars_B4_Moon
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Posts: 9,774

Re: LEO Space Debris

A Satellite Deployed a Drag Sail and Removed Itself from Orbit Five Years Early

https://www.universetoday.com/162964/a- … ars-early/

In an age of increasing “stuff” orbiting Earth one big concern is what happens if one satellite hits another. The result could be an explosion, or a chain reaction of collisions, or the closure of an orbit. That would be catastrophic. However, a small satellite called SBUDNIC just sent itself back to Earth earlier than expected. It’s goal: to demonstrate a low-cost way to take care of space debris.

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#43 2023-09-10 04:43:59

Mars_B4_Moon
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Posts: 9,774

Re: LEO Space Debris

The Japanese space debris removal technology demonstration satellite ADRAS-J is revealed to the press

Japan firm unveils satellite with goal to approach space debris in world 1st
https://mainichi.jp/english/articles/20 … na/006000c

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#44 2024-04-20 09:40:52

Mars_B4_Moon
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Posts: 9,774

Re: LEO Space Debris

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#45 2024-05-15 12:59:51

Mars_B4_Moon
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Registered: 2006-03-23
Posts: 9,774

Re: LEO Space Debris

From outer space? Sask. farmers baffled after discovering strange wreckage in field

https://regina.ctvnews.ca/from-outer-sp … -1.6880353

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#46 2024-06-06 03:07:17

Mars_B4_Moon
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Registered: 2006-03-23
Posts: 9,774

Re: LEO Space Debris

Astroscale shares soar in Tokyo stock market debut

https://spacenews.com/astroscale-shares … ket-debut/

Shares in satellite servicing and debris removal company Astroscale jumped in the first day of trading

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