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questions about how visible spacecraft are, as seen from Earth or anywhere else, as seen by eye or by imaging systems.

7 votes
0 answers
153 views

Measuring and analyzing the tumble of space debris

How well or accurately can we measure the tumble of space debris? I know that we can make ground-based measurements based on light curve data acquired by telescopes. Can tumble be measured from radar …
Jonathan L.'s user avatar
5 votes
2 answers
1k views

Units of "pixels" in a research paper on digital streak formation for optical payloads

I am trying to wrap my head around how a single bright event might spill over and streak across pixels in a sensing array (CMOS) if your exposure time is high enough at some orbital velocity. In the 2 …
Jonathan L.'s user avatar