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CelestLab >> Coordinates and frames > CL_fr_ter2J2000Mat

CL_fr_ter2J2000Mat

Terrestrial frame to EME2000 (J2000) transformation matrix

Calling Sequence

M = CL_fr_ter2J2000Mat(cjd[,ut1_utc[,xp,yp[,dPsi,dEps[,conv]]]])

Description

Parameters

cjd:

modified julian days from 1950.0 (UTC) (1xN)

ut1_utc :

(optional) ut1-utc [seconds] (default is 0) (1xN)

xp :

(optional) x polar coordinate [radians] (default is 0) (1xN)

yp :

(optional) y polar coordinate [radians] (default is 0) (1xN)

dPsi :

(optional) Nutation corrections [radians] (default is 0) (1xN)

dEps :

(optional) Nutation corrections [radians] (default is 0) (1xN)

conv :

(optional) Convention IERS. Only iers 1996 (Lieske/Wahr) is implemented (default is "iers_1996")

M:

terrestrial frame to EME2000 transformation matrix (3x3xN)

Authors

Bibliography

See also

Examples

// Conversion J2000 to terrestrial
pos_J2000=[[3500.e3;2500.e3;5800.e3] , [4500.e3;2100.e3;6800.e3]];
cjd = [21010 , 21011];
M=CL_fr_ter2J2000Mat(cjd);
pos_ter = M' * (pos_J2000);
// Conversion terrestrial to J2000
pos_ter = [[3500.e3;2500.e3;5800.e3] , [4500.e3;2100.e3;6800.e3]];
cjd = [21010 , 21011];
M=CL_fr_ter2J2000Mat(cjd);
pos_J2000 = M * (pos_ter);
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