gcrf_to_ecef_bad

ssapy.utils.gcrf_to_ecef_bad(r_gcrf, t)[source][source]

Convert position vectors from the GCRF (Geocentric Celestial Reference Frame) to the ECEF (Earth-Centered, Earth-Fixed) frame.

Parameters:

  • r_gcrf (numpy array) – Position vector(s) in the GCRF [x, y, z].

  • t (Time or float) – Time(s) at which the position vector(s) are defined. If t is a Time object, GPS seconds are extracted.

Returns:

Position vector(s) in the ECEF frame.

Return type:

numpy array

Notes

  • The Earth’s rotation rate is defined by WGS84_EARTH_OMEGA.

  • The rotation is performed around the Z-axis to account for Earth’s rotation.