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1 vote
1 answer
181 views

What are these squiggly lines in Jonathan McDowell's tweets about Yunhai-1?

Anton Petrov's new video Another Satellite Collided in Space, But Everyone Missed It Until Now (below) is fun to watch, and links to Jonathan McDowell's tweet string which begins Space-Track catalog ...
uhoh's user avatar
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3 votes
1 answer
529 views

What does "MSR" represent in the context of this predicted satellite conjunction?

In a series of four tweets starting with this one (found in 2 satellites will narrowly avoid colliding at 32,800 mph over Pittsburgh on Wednesday) 1/ We are monitoring a close approach event ...
uhoh's user avatar
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24 votes
1 answer
5k views

How did two satellites end up in almost the same orbit except moving in opposite directions?

In a series of four tweets starting with this one (found in 2 satellites will narrowly avoid colliding at 32,800 mph over Pittsburgh on Wednesday) 1/ We are monitoring a close approach event ...
uhoh's user avatar
  • 149k
22 votes
3 answers
1k views

What is the probability of impact?

Space Track is a website dedicated to passing along information about satellites to consumers, primarily satellite operators. The information comes from the US military. In addition to providing the ...
PearsonArtPhoto's user avatar
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