Topic: GPS invalid on S-NPP spacecraft


Date/Time Issued: July 10, 2024  1638Z


Product(s) or Data Impacted: All S-NPP science Data Products


Date/Time of Initial Impact: July 09, 2024 2146Z


Date/Time of Expected End Time:   TBD


Length of Event: TBD


Details: Starting on July 09 at ~2146Z , the GPS receiver on the S-NPP spacecraft toggled to invalid causing the geolocation of all observed data to be inaccurate and out of the mission specifications. Engineering has started planning the execution of the reset of the GPS unit on the S-NPP spacecraft. The anticipated reset of the GPS unit is expected no earlier than July 12, 2024.

All PDA OPS subscriptions for all S-NPP science products will be disabled at 1630Z  on July 10, 2024.

S-NPP High Rate data (HRD) will be disabled on July 10 at 1743Z  for all science products.

The NOAA-21 and NOAA-20 satellites will continue to provide JPSS science data needs as the primary and secondary satellites, respectively.


Contact Information for Further Information: ESPC Operations at at 301-817-3880


Web Site(s) for Applicable Information: N/A


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