[sarex] Wird calculations from WinOrbit 3.5

["Murray Peterson" <promise@xxxxxxxxxxx>]

Does anyone know the explaination of why WinOrbit 3.5 gives such wild
variations in predicting the next pass? As far as I understand these figures
should have bee calculated from the same keps!

For example:

MIR - (Map 0) - Next Pass (LCL time) - Orbit Number 77124

19-Aug-99   01:19:07     Az = 201.7    El = 0.0    Range = 2172 km
19-Aug-99   01:22:28     Az = 158.6    El = 5.4    Range = 1645 km
19-Aug-99   01:25:48     Az = 115.7    El = 0.0    Range = 2155 km


MIR - (Column 0) - Next Pass (LCL time) - Orbit Number 77124

19-Aug-99   01:17:19     Az = 223.4    El = 0.0    Range = 2175 km
19-Aug-99   01:22:17     Az = 137.4    El = 57.5    Range = 419 km
19-Aug-99   01:27:10     Az = 53.3    El = 0.0    Range = 2143 km


MIR - (Server) - Next Pass (LCL time) - Orbit Number 77124

19-Aug-99   01:16:42     Az = 223.1    El = 0.1    Range = 2159 km
19-Aug-99   01:21:37     Az = 137.5    El = 55.5    Range = 422 km
19-Aug-99   01:26:28     Az = 53.8    El = 0.0    Range = 2131 km

These are the values calculated for the next pass over Sydney. Local time
here is UTC + 10 hours.

Regards,

Murray Peterson
VK2KGM
Sydney,
Australia.

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