Background

Global Positioning System-Radio Occultation (GPS-RO) data were evaluated by NASA’s Commercial SmallSat Data Acquisition (CSDA) program and were found to provide value in a number of areas including data assimilation and numerical weather prediction. They also enhanced atmospheric temperature and moisture content vertical profiles when combined with hyperspectral sounder information. Satellite Needs Working Group (SNWG) agencies requested access to GPS-RO data to further explore the value of GPS-RO data to meet their needs.

Status

NASA's CSDA continues to provide access to Global Navigation Satellite System-Radio Occultation (GNSS-RO) data through the current United States (U.S.) Government End User License Agreement (EULA). The license provides scientific, non-commercial use only with a 30-day delay for access to the Spire Earth Science and Heliophysics data catalog.

Solution Characteristics

Societal Impact

Improved access to data products from commercial systems, reduced latency acquisitions, and improved derivation of new research and operational products will enable new opportunities for research and applications across thematic areas.

Solution Resources

Need help using this solution? For more information about accessing and using commercial data, visit the following resources:

• CSDA Program
• CSDA Smallsat Data Explorer
• Commercial Datasets available via NASA's CSDA program
• NASA evaluation of Spire data
• Commercial SmallSat Data Acquisition Program Activities