Next: num06a, Previous: num00a, Up: Internal Routines [Contents][Index]

`num00b(`

`jdtt`)

[SOFA] Returns the matrix for nutation for a given TT Julian Date

, according to the IAU 2000B model. The result has
the same dimensions as `jdtt`

with two dimensions equal to
3 prefixed. The returned matrix `jdtt``m`

can be used as follows:
`v(true) = m v(mean)`

where p-vector `v(true)`

is with
respect to the true equatorial triad of date and the p-vector
`v(mean)`

is with respect to the mean equatorial triad of date.

See also: Astronomical Coordinate Calculations