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nut00a, jdtt, dpsi, deps
[SOFA] Returns the nutation for TT Julian Date jdtt
according to the IAU 2000A model (MHB2000 luni-solar and planetary
nutation with free core nutation omitted). dpsi and
deps are the returned nutation components (luni-solar +
planetary) in radians with respect to the equinox and ecliptic of
date. The J2000.0 obliquity is assumed to be the Lieske et al. (1977)
value of 84381.448 arcsec. The output parameters get the same
dimensions as jdtt.
See also: Astronomical Coordinate Calculations