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LSIDTIM

LSIDTIM

Name


  lsidtim

Purpose


  Compute local sidereal time at a given longitude and time.

Description


  This routine is based on the algorithms from p. 83 of "Astronomical
  Algorithms" by J. Meeus, 1st edition.

Category


  Astronomy

Calling Sequence


  lsidtim,jd,lon,sidtim [,UT=ut]

Inputs


  jd - Julian Date (double precision), scalar or vector.
  lon - West longitude of observatory in radians (scalar).

Optional Input Parameters


Keyword Input Parameters


  UT - Time, in hours to add to JD to get the correct Universal Time.
          That the same as Universal Time minus the Local Time.

Outputs


  lst - Local sidereal time for each of the input times (radians).

Keyword Output Parameters


Common Blocks


Side Effects


Restrictions


Procedure


Modification History


  94/05/05 - Written by Marc W. Buie, Lowell Observatory
  2002/01/08, MWB, 2-d input on jd is now allowed.
  2002/09/05, MWB, total rewrite to use modern formula



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