Improved Moon ecliptic crossing algorithm. Gives better results for solar eclipses. Testing on Eclipses of 21-Aug-2017 and 9-Aug-1999 etc.
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orbtimes-1-7-3-tar Running –selftest mode has eclipse related calculations, fails apparent moon doesn’t always cross the ecliptic.
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[simterm]
$ src/orbtimes –selftest | grep Eclipse
Solar Eclipses ref: Nasa Great American Eclipse Aug 21, 2017
Eclipse 2017 8 21: Probabel 1.000000 Maximum 18.420241 (18.425556) check 1 (0.005315)
Eclipse 2017 8 21: Probabel 1.000000 Maximum 18.356242 (18.363611) check 1 (0.007369)
Eclipse 1999 8 11: Probabel 1.000000 Maximum 12.556842 (11.051500) check 1 (1.505342)
Eclipse 1999 8 11: Probabel 1.000000 Maximum 10.207916 (10.183333) check 1 (0.024583)
Eclipse 1999 8 11: Probabel 1.000000 Maximum 11.344499 (10.883333) check 1 (0.461165)
Eclipse 1945 7 9: Probabel 1.000000 Maximum 13.442795 (13.455111) check 1 (0.012316)
Eclipse 2594 8 7: Probabel 1.000000 Maximum 15.161958 (14.518778) check 1 (0.643180)
Eclipse 1963 7 20: Probabel 1.000000 Maximum 20.572457 (20.594000) check 1 (0.021543)
[/simterm]