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erfasrc/src/bi00.c  view on Meta::CPAN

**  3) This is a supplemented implementation of one aspect of the IAU
**     2000A nutation model, formally adopted by the IAU General
**     Assembly in 2000, namely MHB2000 (Mathews et al. 2002).
**
**  References:
**
**     Chapront, J., Chapront-Touze, M. & Francou, G., Astron.
**     Astrophys., 387, 700, 2002.
**
**     Mathews, P.M., Herring, T.A., Buffet, B.A., "Modeling of nutation
**     and precession   New nutation series for nonrigid Earth and
**     insights into the Earth's interior", J.Geophys.Res., 107, B4,
**     2002.  The MHB2000 code itself was obtained on 9th September 2002
**     from ftp://maia.usno.navy.mil/conv2000/chapter5/IAU2000A.
**
**  Copyright (C) 2013-2020, NumFOCUS Foundation.
**  Derived, with permission, from the SOFA library.  See notes at end of file.
*/
{
/* The frame bias corrections in longitude and obliquity */
   const double DPBIAS = -0.041775  * ERFA_DAS2R,

erfasrc/src/pr00.c  view on Meta::CPAN

**     model, formally adopted by the IAU General Assembly in 2000,
**     namely MHB2000 (Mathews et al. 2002).
**
**  References:
**
**     Lieske, J.H., Lederle, T., Fricke, W. & Morando, B., "Expressions
**     for the precession quantities based upon the IAU (1976) System of
**     Astronomical Constants", Astron.Astrophys., 58, 1-16 (1977)
**
**     Mathews, P.M., Herring, T.A., Buffet, B.A., "Modeling of nutation
**     and precession   New nutation series for nonrigid Earth and
**     insights into the Earth's interior", J.Geophys.Res., 107, B4,
**     2002.  The MHB2000 code itself was obtained on 9th September 2002
**     from ftp://maia.usno.navy.mil/conv2000/chapter5/IAU2000A.
**
**     Wallace, P.T., "Software for Implementing the IAU 2000
**     Resolutions", in IERS Workshop 5.1 (2002).
**
**  Copyright (C) 2013-2020, NumFOCUS Foundation.
**  Derived, with permission, from the SOFA library.  See notes at end of file.
*/