calc_gmst_gast¶
- rubin_sim.utils.calc_gmst_gast(mjd)¶
Compute Greenwich mean sidereal time and Greenwich apparent sidereal time see: From http://aa.usno.navy.mil/faq/docs/GAST.php
@param [in] mjd is the universal time (ut1) expressed as an MJD
@param [out] gmst Greenwich mean sidereal time in hours
@param [out] gast Greenwich apparent sidereal time in hours