modula operation

Open trufanov-nok opened this issue 2 years ago • 0 comments

It seems to affect nothing but perhaps it will be better to replace this line https://github.com/brandon-rhodes/python-sgp4/blob/fac882aed0e8e5eb2cbd17409e00c7feb7c577ea/sgp4/propagation.py#L1802 with

     temp_mm = xlm - argpm - nodem
     mm     = temp_mm % twopi if temp_mm >= 0.0 else -(-temp_mm % twopi)

like it's done for nodem few lines above. Because (xlm - argpm - nodem) could be negative. Test TLE:

line1 = '1 41465U 16026B   16119.28938119 -.00000073  00000-0  00000+0 0  9994'
line2 = '2 41465  97.2725  25.4306 0011130 259.3700 198.8486 15.29059623    13'

Jul 12 '23 23:07 trufanov-nok