ssapy_toolkit.Coordinates.itrf_to_gcrf

ssapy_toolkit.Coordinates.itrf_to_gcrf(r_itrf: ndarray, time: ndarray) → ndarray[source]

Convert positions from ITRF to GCRF, undoing the transformation of groundTrack.

Parameters:

r_itrf (array_like, shape (n, 3)) – Positions in ITRF (meters).
time (array_like, shape (n,)) – GPS seconds since 1980-01-06 00:00:00 UTC.

Returns:

r_gcrf – Positions in GCRF (meters).

Return type:

ndarray, shape (n, 3)