Source: https://twitter.com/LeoLabs_Space/status/1316147305125490694

We are monitoring a very high risk conjunction between two large defunct objects in LEO (thats low earth orbit).
Multiple data points show miss distance <25m and Pc between 1% and 20%. Combined mass of both objects is ~2,800kg.

Object 1: 19826
Object 2: 36123
TCA: Oct 16 00:56UTC
Event altitude: 991km

One satellite, one rocket stage. One (Cosmos 2004) is an old Russian communication/navigation satellite from the 1980s, and the other (CZ-4C R/B) is the upper stage of a Chinese Long March rocket that launched in 2009. Both of them are inactive and have been for a long time.

Projected landing site is most of new Zealand "if" the collission happens.
https://pbs.twimg.com/media/EkPkm5qX0AQMUPu?format=jpg&name=large

Also see: https://en.wikipedia.org/wiki/Kessler_syndrome

update - No impact !

3 years ago*

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Kessler syndrome explained with cartoony birds:
https://www.youtube.com/watch?v=yS1ibDImAYU

3 years ago
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Brilliant video !

3 years ago
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Yep, the whole Kurzgesagt channel is awesome and worth subscribing to.

3 years ago
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Well shit. I hope it doesn't happen but if 2020's luck stays exactly the same, what are the odds?

3 years ago
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You heard it here first: bullshit.
If you don't hear from me again... well, you know...
at least covid-19 isn't a problem here

3 years ago
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Yeah,. nice quote from MMOC:

NZ gets through a pandemic with flying colors and their reward is...a high chance of raining satellite debris.

3 years ago
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Correct me if I'm wrong, but isn't the main concern with Kessler syndrome the debris which remain orbiting and which can potentially cause a chain reaction which takes down our entire satellite system? (See the video which starporcasa linked for my primary source of information too. ^_^' )
The stuff that end up losing velocity and going down to Earth will just burn up in the atmosphere and do nothing.

3 years ago*
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Yes, the bits that stay up in orbit are the problem with Kessler syndrome. But the bits that eventually fall down can still be a problem until they do. Which could be years if they are only just within the atmosphere.

Yes, the small bits that fall down are going to be harmless. But large bits can reach the ground and leave a crater, so they are a problem.

3 years ago
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Bump and meow and hi from New Zealand

View attached image.
3 years ago*
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Would be typical for 2020, that it ruins space before the first clean up mission by the ESA is ready, in 2025.

3 years ago
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Another gift from commies! :)

3 years ago
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Deleted

This comment was deleted 11 months ago.

3 years ago
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Two in the afternoon, darn, won't get a good view.
I wonder if Jacinda has this one on her bingo card.

3 years ago
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Life's going pretty well if that's your biggest worry.

3 years ago
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Closed 3 years ago by BBR.