falp03¶
- erfa.falp03(t)[source]¶
Fundamental argument, IERS Conventions (2003): mean anomaly of the Sun.
- Parameters:
- tdouble array
- Returns:
- c_retvaldouble array
Notes
Wraps ERFA function
eraFalp03
. The ERFA documentation is:- - - - - - - - - - e r a F a l p 0 3 - - - - - - - - - - Fundamental argument, IERS Conventions (2003): mean anomaly of the Sun. Given: t double TDB, Julian centuries since J2000.0 (Note 1) Returned (function value): double l', radians (Note 2) Notes: 1) Though t is strictly TDB, it is usually more convenient to use TT, which makes no significant difference. 2) The expression used is as adopted in IERS Conventions (2003) and is from Simon et al. (1994). References: McCarthy, D. D., Petit, G. (eds.), IERS Conventions (2003), IERS Technical Note No. 32, BKG (2004) Simon, J.-L., Bretagnon, P., Chapront, J., Chapront-Touze, M., Francou, G., Laskar, J. 1994, Astron.Astrophys. 282, 663-683 This revision: 2021 May 11 Copyright (C) 2013-2023, NumFOCUS Foundation. Derived, with permission, from the SOFA library. See notes at end of file.