This dataset provides the L1B Global Navigation Satellite System (GNSS) Radio Occultation (RO) Precise Orbit Determination (POD) data generated by NASA JPL from Sentinel-6A Michael Freilich. The product provides raw satellite navigation system data and in the receiver independent exchange format version 3 (RINEX-3).

Sentinel 6 is a collaborative mission between NASA's Jet Propulsion Laboratory (JPL) and EUMETSAT, with participation from European Space Agency (ESA), the USA's National Oceanic and Atmospheric Administration (NOAA), and Centre National d’Études Spatiales (CNES) of France. These organizations will deliver an operational mission as part of a two-satellite European Copernicus/Sentinel program. The Sentinel-6A Michael Freilich Jason-CS (Sentinel-6A) was launched in November 21, 2020. One objective of Sentinel 6 is to collect high-resolution vertical profiles of temperature and humidity, using GNSS RO sounding technique, to assess temperature and humidity changes in the troposphere and stratosphere and to support numerical weather prediction.