NASA Goddard Space Flight Center   Geodesy and Geophysics Laboratory

Astronomy and Geodesy Scientific Data Products

Astronomy

• Radio Fundamental Catalogue of compact radio sources. Provides positions, maps, and estimates of the correlated flux density for over 20,000 extragalactic radio sources.
• VLBI Calibrator search engine allows to find compact radio sources useful as a calibrator for VLBI experiments within the specified search radius of the target objects.
• The VLBI image database of compact radio sources. It provides over 100,000 images of more than twenty thousands active galaxy nuclei in radio waves.

Space geodesy

• The Network Earth Rotation Service
• Service of crustal deformations caused by mass loading. Updated hourly. Includes mass loading caused by
  1. Ocean tides
     
  2. Non-tidal ocean bottom pressure variations
     
  3. Atmosphere pressure variations
     
  4. Land water storage changes
     
• Variability of the gravitational field of the Earth.
• International Path Delay Service.
• Atmospheric angular momentum online service.

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Last update: 2024.04.29_17:41:27 UTC