Geodetic CRS: ITRF92
Datum: International Terrestrial Reference Frame 1992
Ellipsoid: GRS 1980
Prime meridian: Greenwich
Data source: OGP
Information source: Boucher and Altamimi "Memo : Specifications for reference frame fixing in the analysis of a EUREF GPS campaign" (http://etrs89.ensg.ign.fr/memo-V8.pdf)
Revision date: 2019-07-17
Scope: Realization of ETRS89 from ITRF92 through ETRF2000.
Remarks: Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m.
Method: Time-dependent Position Vector tfm (geocentric)
Description: (0,)
Definition: OGP XML
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