gst06(jdut, jdtt, rnpb)
[SOFA] Returns Greenwich apparent sidereal time in radians consistent
with IAU 2006 resolutions, given the nutation-precession-bias matrix
jdut is the Julian Date (UT1).
jdtt is the Julian Date (TT) of the same
jdut is needed to predict the Earth rotation,
and TT to predict the effects of precession. If
set equal to
jdut then errors of order 100
have the same dimensions.
rnpb must have those
dimensions, too, with two extra dimensions equal to 3 prefixed. The
result has the same dimensions as
See also: Astronomical Coordinate Calculations