LST2JD

Name

lst2jd

Purpose

Compute UT given local sidereal time, longitude and approximate time.

Description

This routine is based on the algorithms from p. 39 of "Astronomical
Formulae for Calculators" by J. Meeus.

Calling Sequence

lst2jd,jd0,lon,sidtim,jd

Inputs

jd0 - Julian Date (double precision), at 0h UT, scalar or vector.
The "fractional" part of the jd is ignored.
lon - West longitude of observatory in radians (scalar).
sidtim - Local sidereal time (radians).

Optional Input Parameters

Keyword Input Parameters

Outputs

jd - Julian Date that matches sidtim.

Keyword Output Parameters

Common Blocks

Side Effects

Restrictions

Procedure

Modification History

2002/09/03 - Written by Marc W. Buie, Lowell Observatory