Calculates a rotation matrix from equatorial of-date (EQD) to J2000 mean ecliptic (ECL).
This is one of the family of functions that returns a rotation matrix
for converting from one orientation to another.
Source: EQD = equatorial system, using equator of date.
Target: ECL = ecliptic system, using equator at J2000 epoch.
Calculates a rotation matrix from equatorial of-date (EQD) to J2000 mean ecliptic (ECL).
This is one of the family of functions that returns a rotation matrix for converting from one orientation to another. Source: EQD = equatorial system, using equator of date. Target: ECL = ecliptic system, using equator at J2000 epoch.