Scenario: CB Inertial To Fixed Quaternions

Orientation of central body fixed coordinate axes. The orientation can be requested relative to a variety of inertial coordinate axes. Nominally, the axes J2000, TrueOfDate, and MeanOfDate are supported, although some central bodies (notably the Earth and Sun) have more. The following lists the axes available for Earth.

Type: Time-varying data

Availability: Reports | Graphs | Dynamic Displays

Name Description
ICRF Earth's attitude expressed with respect to 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).
TEMEOfEpoch The true equator mean equinox coordinate system evaluated at the epoch of the object.
TEMEOfDate The true equator mean equinox coordinate system evaluated at the requested time.
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 = JD 2451545.0 TDB).

STK Programming Interface 11.0.1