XMM-Newton Science Analysis System


orbit (orbit-3.0) [xmmsas_20211130_0941-20.0.0]

Comments

• This task simply converts some of the available Orbit parameters from their current ODF ascii format (as a Spacecraft Reconstructed Orbit File). It is assumed these positional and velocity parameters can be better accessed in FITS for constructing possible GTI's.

• This task also converts the Geocentric Equatorial Inertial (GEI) in km to Geosynchronous Solar Ecliptic (GSE) in km to facilitate the NASA/GSFC Trend Data construction.

• It is not clear the usefulness of the orbit file for barycentric correction but it is clear this file should be presented in a format that maximizes using preexisting software to calculate such values FROM this file.