pint.solar_system_ephemerides.get_tdb_tt_ephem_geocenter

pint.solar_system_ephemerides.get_tdb_tt_ephem_geocenter(tt, ephem, path=None, link=None)[source]

The is a function to read the TDB_TT correction from the JPL DExxxt.bsp ephemeris file.

Parameters:

t (Astropy.time.Time object) – Observation time in Astropy.time.Time object format.
ephem (str) – Ephemeris name.
path (str, optional) – Local path to the ephemeris file.
link (str, optional) – Location of path on the internet.

Note

Only the DEXXXt.bsp type ephemeris has the TDB-TT information, others do not provide it. The definition for TDB-TT column is described in the paper: https://ipnpr.jpl.nasa.gov/progress_report/42-196/196C.pdf page 6.