Sp3Format2Orbit

Read orbits from SP3 format and write an instrument file (ORBIT). The additional outputfileClock is an instrument file (MISCVALUE) and outputfileCovariance is an instrument file (COVARIANCE3D).

With satelliteIdentifier a single satellite can be selected if the inputfiles contain more than one satellites. If satelliteIdentifier is empty the first satellite is taken. All satellites can be selected with satelliteIdentifier=<all>. In this case the identifier is appended to each output file.

If earthRotation is provided the data are transformed from terrestrial (TRF) to celestial reference frame (CRF). Since SP3 orbits often use the center of Earth as a reference, a correction from center of Earth to center of mass can be applied to the orbits by providing gravityfield (e.g. ocean tides).

See also Orbit2Sp3Format.

Name	Type	Annotation
outputfileOrbit	filename
outputfileClock	filename
outputfileCovariance	filename	3x3 epoch covariance
satelliteIdentifier	string	e.g. L09 for GRACE A, empty: take first satellite, : identifier is appended to each file
earthRotation	earthRotation	rotation from TRF to CRF
gravityfield	gravityfield	degree 1 fluid mantle for CM2CE correction (SP3 orbits should be in center of Earth)
inputfile	filename	orbits in SP3 format