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Global and Regional Network Maps
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  • GNSS
  • SLR
  • VLBI
  • DORIS
Learn about Techniques
26 Aug 2014
In the next few days, you will receive an email from CFI Group on behalf of NASA. This message will ask you to complete a survey for users of NASA Earth science data and services, which includes the Crustal Dynamics Data Information System (CDDIS). The CDDIS is one of twelve NASA Earth Observing System Data and Information System (EOSDIS) science data centers evaluated by this survey. The purpose of this survey is to help NASA and the DAACs assess customer satisfaction and improve future services. Suggestions from past surveys have been implemented to improve the tools and services offered by the CDDIS. Read more

06 Aug 2014
The CDDIS Site Log Viewer tool is now available. Browse SLR, DORIS, or GNSS site logs by individual site or across multiple sites.
Proceedings from the 18th International Workshop on Laser Ranging
25 Mar 2014
A website for the proceedings from the 18th International Workshop on Laser Ranging, held November 11-15, 2013 in Fujiyoshida Japan, has been created and is now available at http://cddis.gsfc.nasa.gov/lw18/. Read more

Weekly GNSS data holdings (daily, hourly, high-rate)

Weekly SLR normal point pass segment totals (by satellite, LAGEOS and ETALON only)

Browse SLR, DORIS, or GNSS site logs by site or across the network.

Search and discover CDDIS data holdings using the GSAC-WS.