The SNPP mission has restored data collection following a spacecraft anomaly that occurred on 26 July 2022. The VIIRS calibration team is evaluating the data to determine any impacts the two-week outage may have had on data quality. This evaluation may take several weeks to complete. Until such time as this analysis is complete and any calibration adjustments can be made, users are cautioned against using these data for scientific analyses.


Sensor SummaryAquarius is the primary instrument aboard the Argentine SAC-D (Satelite de Aplicaciones Cientificas-D) spacecraft. The instrument has three L-band microwave radiometers plus a scatterometer designed for the measurement of global sea surface salinity. The spacecraft flies in a sun-synchronous orbit with a local equator-crossing time of 6PM (ascending).
Data Record PeriodOur set of data records covers the entire routine operations period from 2011-06-10 to 2015-06-07.
Version HistoryView Version History
Data Access
Data CitationSuggested Citation for SAC-D/Aquarius data:

NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology Processing Group. Aquarius/SAC-D {Dataset Name} Data; NASA OB.DAAC, Greenbelt, MD, USA. doi: {DOI}.
Accessed on 08/16/2022

The PO.DAAC is the official archive center for the Aquarius sensor. DOI's for this sensor can be found on the "Information" tab of the desired dataset via the PO.DAAC's Dataset Discovery Tool.

For further information, please refer to our Citations page.