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Calculates a rotation matrix from J2000 mean ecliptic (ECL) to J2000 mean equator (EQJ).

Usage

astro_rotation_ECL_EQJ()

Value

A rotation matrix that converts ECL to EQJ.

Details

This is one of the family of functions that returns a rotation matrix for converting from one orientation to another.

Source: ECL = ecliptic system, using equator at J2000 epoch.

Target: EQJ = equatorial system, using equator at J2000 epoch.

Examples

astro_rotation_ECL_EQJ()
#>      [,1]       [,2]      [,3]
#> [1,]    1  0.0000000 0.0000000
#> [2,]    0  0.9174821 0.3977770
#> [3,]    0 -0.3977770 0.9174821