Questions tagged [ecef]

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Why do ~GEO sats seem to cluster around the top portion and bottom portion of the belt, 180 degrees apart?

I made a 3D tle model from API. I drew a dashed blue line to show the really "geo" orbits that hardly move with time (ECEF). Then there are a bunch of sats that ...
Krits's user avatar
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Calculating angular deviation from LEO magnetic field

The situation I need to calculate pointing errors for a satellite that points along Earth's magnetic field. The satellite's position and orientation are given to me w.r.t ECI J2000. The orientation is ...
Andrew Johnson's user avatar