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Description

Expanded set of SLR station positions and velocities in the ITRF2020 frame, includes historical sites NOT part of ITRF2020 and some very recently installed sites that came online in 2022. A small number of sites require special treatment with the addition of corrections to their "mean" positions (in this file) from the ITRS-distributed PSD model, due to "events" (e.g. earthquakes) or changes at the site. Users must apply these corrections cumulatively, to the linearly propagated positions from this file, by themselves. For more details, s/w and relevant correction files please visit the official ITRS site on ITRF2020 at: https://itrf.ign.fr/en/solutions/ITRF2020

Product Summary

Platforms
SATELLITES
Spatial Extent
N: 90 S: -90 E: 180 W: -180
Geographic Region
GLOBAL
Coordinate System
GEODETIC
Granule Spatial Representation
GEODETIC
Temporal Extent
1976-05-01
Data Partner
Crustal Dynamics Data Information System, Geodesy and Geophysics Laboratory, Earth Sciences Division, Sciences and Exploration Directorate, Goddard Space Flight Center, NASA (CDDIS)
Concept ID
c2736341183-cddis
Data State
ACTIVE
Processing Level
2

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

JPL Global Differential GPS (GDGPS) System. (2023). The International Laser Ranging Service (ILRS) extension of the International Terrestrial Reference Frame 2020 (ITRF2020) TRF Model with additional SLR sites at NASA CDDIS [Data set]. NASA Crustal Dynamics Data Information System. https://doi.org/10.5067/SLR/SLRF2020_001 Date Accessed: 2025-07-17

Documents

GENERAL DOCUMENTATION URL for more information about SLR derived products

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