pint.solar_system_ephemerides.objPosVel_wrt_SSB

pint.solar_system_ephemerides.objPosVel_wrt_SSB(objname, t, ephem, path=None, link=None)[source]

This function computes a solar system object position and velocity respect to solar system barycenter using astropy coordinates get_body_barycentric() method.

The coordinate frame is that of the underlying solar system ephemeris, which has been the ICRF (J2000) since the DE4XX series.

Parameters:

  • objname (str) – Solar system object name. Current support solar system bodies are listed in astropy.coordinates.solar_system_ephemeris.bodies attribution.

  • t (Astropy.time.Time object) – Observation time in Astropy.time.Time object format.

  • ephem (str) – The ephem to for computing solar system object position and velocity

  • path (str, optional) – Local path to the ephemeris file.

  • link (str, optional) – Location of path on the internet.

Return type:

PosVel object with 3-vectors for the position and velocity of the object