Questions tagged [ssa]

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Using NASA Horizons with Celestrak Socrates's TLE CDMs?

Has anyone succeeded with getting a list of Collision Data Messages (CDMs) from nice sites like Celestrak in order to feed them into NASA Horizon's ephemeris computation service. These would include ...
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Who offers Conjunction Data Messages (CDM)

I know space-track and LeoLabs offers Conjunction Data Messages. Are there other commercial or open-source offerings? How accurate are CDMs if you only used TLEs which do not include covariance.
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SSA Sensors in Space - game changer?

I'm curious about the space-based sensor networks that seem to be an upcoming means of tracking Resident Space Objects (RSO). https://spacenews.com/getting-ssa-off-the-ground/ I'd like to know more ...
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