Path: SC/Ephem
% Computes the matrix from mean of Aries 2000 to earth fixed frame.
Uses EarthRot, EarthNut, and EarthPre in sequence.
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Form:
[c, g, n, p] = TruEarth( T, useEofE )
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Inputs
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T (1,1) Julian centuries of 86400s dynamical time from j2000.0
useEofE (1,1) If entered will use the equation of the equinoxes
for the earth rotation matrix
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Outputs
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c (3,3) Matrix from Mean of 2000.0 to earth fixed
g (3,3) Greenwich matrix
n (3,3) Nutation matrix
p (3,3) Precession matrix
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References: Seidelmann, ed. The Explanatory Supplement to the Astronomical
Almanac, University Science Books, 1992, p. 20.
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SC: Ephem/EOfE SC: Ephem/EarthNut SC: Ephem/EarthPre SC: Ephem/EarthRot SC: Ephem/GMSTime SC: Ephem/MSidDay SC: Ephem/NutDelta SC: Ephem/ObOfE Common: Time/DTSToDTA Common: Time/Date2JD Common: Time/JD2000 Common: Time/JD2T Common: Time/JDToMidnight Math: MathUtils/R2P5 Math: Trigonometry/CosD Math: Trigonometry/SinD
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