fasa03¶
- erfa.fasa03(t)[source]¶
Fundamental argument, IERS Conventions (2003): mean longitude of Saturn.
- Parameters:
- tdouble array
- Returns:
- c_retvaldouble array
Notes
Wraps ERFA function
eraFasa03
. The ERFA documentation is:- - - - - - - - - - e r a F a s a 0 3 - - - - - - - - - - Fundamental argument, IERS Conventions (2003): mean longitude of Saturn. Given: t double TDB, Julian centuries since J2000.0 (Note 1) Returned (function value): double mean longitude of Saturn, 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 comes from Souchay et al. (1999) after 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 Souchay, J., Loysel, B., Kinoshita, H., Folgueira, M. 1999, Astron.Astrophys.Supp.Ser. 135, 111 This revision: 2021 May 11 Copyright (C) 2013-2023, NumFOCUS Foundation. Derived, with permission, from the SOFA library. See notes at end of file.