./toolbox
juldaytolmst.pro

Last modification date:

Thu Jun 2 23:56:08 2005

juldaytolmst

function juldaytolmst(juldat, [obslong=double])

Convert from Julian day to local mean sidereal time. By default the longitude of the GBT is used.

If you need local apparent sidereal time, then add the equation of the equinox to these values (see nutation_m()).

This code came from Phil Perillat at Arecibo. Local changes:

• use the position of the GBT as the default position.
• modify this documentation for use by idldoc.
• modify to make use of the obslong keyword, which is now east longitude in degrees to match contents of gbtidl data container.

Returns

lmst[n]: double local mean sidereal time in radians

Uses

utcinfoinp utcToUt1

Version

$Id: juldaytolmst.pro,v 1.1 2004/11/30 15:42:58 bgarwood Exp $

Parameters
juldat in, required double	Array of julian days to convert.

Keywords
obslong in, optional double (def. GBT)	East longitude of observatory in degrees.