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15.5.400 nut00b

nut00b, jdtt, dpsi, deps

[SOFA] Returns the nutation for TT Julian Date jdtt according to the IAU 2000B model. 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 errors that result from using this function with the IAU 2006 value of 84381.406 arcsec can be neglected. The output parameters get the same dimensions as jdtt.

See also: Astronomical Coordinate Calculations