| Name | Description |
|---|---|
| Fixed | A coordinate system attached to the central body and rotating with it. |
| ICRF | The position of the object in question relative to its central body, expressed in the ICRF frame. |
| MeanOfDate | The mean equator mean equinox coordinate system evaluated at the requested time. |
| MeanOfEpoch | The mean equator mean equinox coordinate system evaluated at the epoch of the object. |
| TrueOfDate | The true equator true equinox coordinate system evaluated at the requested time. |
| TrueOfEpoch | The true equator true equinox coordinate system evaluated at the epoch of the object. |
| B1950 | The mean equator mean equinox coordinate system evaluated at the beginning of the Besselian year 1950 (31 December 1949 22:09:46.866 = JD 2433282.4234591). |
| TEMEOfDate | The true equator mean equinox coordinate system evaluated at the requested time. |
| TEMEOfEpoch | The true equator mean equinox coordinate system evaluated at the epoch of the object. |
| AlignmentAtEpoch | The non-rotating coordinate system coincident with the Fixed system evaluated at the object's coordinate reference epoch. |
| J2000 | The mean equator mean equinox coordinate system evaluated at the J2000.0 epoch (2000 January 1.5 TDB = JD 2451545.0 TDB). |
| Body | The body fixed axes of the "Access from" object. |
STK Programming Interface 11.0.1