Unknown maneuvers are a common issue when you doing orbit determination (OD) on a satellite that isn't yours. The maneuver(s) is an extra force that if not modeled properly will corrupt your OD fit or cause it to fail altogether. So you need to have a plan to detect when a maneuver might be occurring (the detection problem). and then have a mechanism for trying to reverse engineer it and model it properly. We've been working on this problem for the last couple of years and ha

Just wrapped up the 3rd International Conference on Space Situational Awareness (ICSSA) in Tres Cantos, Madrid. We presented our paper...

Azimuth and elevation angle biases from XY angle biases.

Solar flux analysis

Modeling the radar cross section (RCS) of space objects.