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% Compute Greenwich mean sidereal time from Julian date.
This is the angle between the Greenwich Meridian and the Vernal Equinox.
Since version 1.
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Form:
gmst = GMSTime( jd )
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Inputs
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jd (1,1) Julian date UT (day)
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Outputs
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gmst (1,1) Greenwich mean sidereal time (deg)
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References: The Astronomical Almanac for the Year 1993, U.S. Government
Printing Office, 1993, p. B6.
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SC: Ephem/MSidDay Common: Time/DTSToDTA Common: Time/Date2JD Common: Time/JD2000 Common: Time/JDToMidnight Math: MathUtils/R2P5
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