Solid Earth

Physical Properties	Data Center	Selected Data Sets and Data Collections Complete data set listings available through each individual data center.
Solid Earth Earth Orientation Parameters (EOP), Crustal Dynamics, Geodesy	CDDIS http://cddis.gsfc.nasa.gov	Daily and weekly Earth Orientation Parameters (EOP) - polar motion and rates, length-of-day values, nutation) derived from GNSS, SLR, VLBI, and DORIS ground network measurements Station positions and velocities from GNSS, SLR, VLBI and DORIS ground networks GNSS data from National Geospatial-Intelligence Agency (NGA) sites Ground Network/Satellite Measurements: Daily, hourly, and sub-hourly code and phase observations from GNSS ground network Daily and hourly files of round trip time of flight from satellite laser ranging (SLR) ground network Time-tagged range-rate measurements from DORIS ground network

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