Mathematical innacuracies

Open linmar22 opened this issue 2 years ago • 1 comments

Seems like the result of invjday and findsat is off. Compared to N2YO and gPredict, the nearest passes are off by 1-5 minutes, the current calculated direction of the satellite seems to be off, sometimes even by as much as 30 degrees elevation.

Is this a limitation of a simplified SGP4 or am I just being an idiot?

Jun 16 '23 03:06 linmar22

Same here, library returns:

Tracking: ISS (ZARYA) Azimuth: 91.44 Elevation: -44.68

While tracking apps shows: Azimuth: 63.6 Elevation: -60.6

May 13 '24 19:05 iu2frl