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Path: SC/Ephem
% Computes the transformation form ECI to ECIR.
ECIR is an inertially fixed frame that coincides with EF at jD.
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Form:
m = ECIToECIR( jD, eOfECalc )
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Inputs
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jD (1,1) Julian date
eOfECalc (1,1) Calculate the equation of the equinoxes
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Outputs
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m (3,3) Julian date at which theta is zero
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References: Seidelmann, P. K., ed., The Explanatory Supplement to the
Astronomical Almanac, University Science Books, 1992, p. 20.
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Common: Time/JD2T SC: Ephem/EarthRot
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