Function lupnt::RotGcrfToEme

• Defined in File frame_conversions.cc

Function Documentation

Mat3d lupnt::RotGcrfToEme()

Returns the constant (time-independent) GCRF-to-EME2000 frame-bias rotation matrix B_e (a.k.a. the Earth Frame Bias Matrix), exact to all orders in the IAU 2006 frame-bias angles, such that v_EME = B_e * v_GCRF.

Used internally by GcrfToEme/EmeToGcrf to convert between the GCRF (ICRF-aligned) and EME2000 (J2000 mean equator/equinox) inertial frames.

Note

Also known as Earth Frame Bias Matrix Astrodynamics Convention & Modeling Reference, Version 1.1, Page 38

Returns:

3x3 GCRF-to-EME2000 frame-bias rotation matrix B_e (dimensionless)