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The transition to using the terrestrial geocentric coordinate system “Parametry Zemli 1990” (PZ-90.11) in operating GLONASS has been implemented, according to an April 4 announcement by the Russian Federal Space Agency’s Information-Anayltical Center.
The implementation fulfills Russian Government Resolution № 1463 of December 28, 2012, “On the Common National Geodetic Coordinate Systems,” outlining the transition starting at 3 p.m. on December 31, 2013. The fundamental geodetic constants as well as the Earth’s ellipsoid parameters used in PZ-90.11 are provided in the annex to the resolution.
The updated version of the GLONASS ICD (edition 5.1 of 2008) has been published.
