Global and Regional Network Maps
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  • GNSS
  • SLR
  • VLBI
Learn about Techniques
06 Jan 2016
Starting with data from 2016, all RINEX V3 data using the RINEX V3 filenaming convention will now be made available in the operational GNSS data archives at the CDDIS. This change has been implemented at the IGS data centers in accordance with the IGS RINEX 3 transition plan (http://bit.ly/1Md7VhU).
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Brief network outages at GSFC on December 19, 2015
11 Dec 2015
Work will be performed on the NASA GSFC network infrastructure from 03:00 p.m. (20:00 UTC), Saturday, December 19, 2015 through 03:00 a.m. (08:00 UTC) on Sunday, December 20. Users can expect 10-15 minute interruptions during that time period.
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SPOT-5 De-orbited
02 Dec 2015
The SPOT-5 satellite was de-orbited on December 1, 2015 after a successful 13 year mission. The satellite was decommissioned on March 31, 2015. DORIS data from the satellite have stopped. More information about SPOT-5 can be found at: http://www.satimagingcorp.com/satellite-sensors/other-satellite-sensors/spot-5/.

2015 User feedback survey
14 Sep 2015
Beginning this week, NASA will be conducting 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.
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Weekly GNSS data holdings (daily, hourly, high-rate)

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

Archive Explorer Tool Search the CDDIS data archive for SLR, DORIS, or GNSS data.

Site Log Viewer Tool Browse SLR, DORIS, or GNSS site logs by site or across the network.

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