NASA will be performing network maintenance on Wednesday, January 15, 2025, between 9:00 AM EST and 1:00 PM EST (14:00 to 18:00 UTC). There will be a few short periods of disruption. This will result in the unavailability of the CDDIS archive and the website. If you experience problems outside this window, contact support-cddis@nasa.gov.

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CDDIS: NASA's Archive of Space Geodesy Data
Contacting the CDDIS Team

You have several options to contact the CDDIS Team. These are listed below.

  1. Earthdata Forum: To interact with other users and NASA subject matter experts from across the DAACs on a variety of Earth science research and applications topics, including Space Geodesy, go to the Earthdata Forum.
  2. support-cddis@nasa.gov: Submit questions to this email address to log a ticket with our user support team. Our staff will interact with you directly to resolve your request.
  3. gsfc-dl-cddis-help-ntrip@mail.nasa.gov: This email address is specifically for users that need help with the CDDIS GNSS real-time data caster.