Update #4: Engineering completed S-NPP spacecraft recovery efforts on Tuesday, June 02, 2026. The S-NPP spacecraft was returned to nominal mission point as of 16:27 UTC on June 01, 2026. ATMS was placed on operational mode on June 01, 2026 at 17:28:19 UTC. CERES was placed in operational mode on June 01, 2026 at 17:29:35 UTC. OMPS was placed in operational mode on June 01, 2026 at 18:09:56 UTC. VIIRS was placed in operational mode on June 02, 2026 at 15:05:23 UTC. 


Cal/val teams have focused their analysis on observed data following this timeline. PDA OPS requests for all S-NPP science products were disabled at 14:29 UTC on June 01, 2026 until the recovery efforts and the analysis were completed. Science data has been available to the cal/val teams through the NCCF UAT (User Acceptance Testing) environment and CLASS to perform their full analysis.


As of Thursday June 04, 2026, all S-NPP ATMS, VIIRS, OMPS Nadir Mapper (NM) (Total Column Ozone V8TOz NetCDF & BUFR & V8TOS NetCDF files) science products are approved for operational use and PDA OPS subscriptions for these products will be enabled at 20:30 UTC, June 04, 2026. The High Rate Data (HRD) will be enabled at 21:18 UTC, June 04, 2026. Direct Broadcast (DB) users can use the equivalent S-NPP ATMS, VIIRS, OMPS Nadir Mapper (NM) Community Satellite Processing Package (CSPP) LEO products for operations. 


The OMPS Nadir Profiler (NP) and Limb Profiler (LP) products are expected to be approved no earlier than late next week following the ingest of additional OMPS SDR LUTs into operations. 

While all OMPS products are available for Direct Broadcast (DB) users, please take caution that OMPS Nadir Profiler (NP) and Limb Profiler (LP) products are not yet approved for operational use. An update notice will be posted once these OMPS products are ready for operational use.

Update #3: Direct Broadcast / High-Rate Data (HRD) for S-NPP was turned off on June 02, 2026 at 15:02:16 UTC. OSPO Engineering anticipates operational instrument recovery completion by close of business June 02, 2026. OSPO engineering plans to turn recovery efforts over to data calibration/validation (Cal/Val) scientists on June 03, 2026.

Update #2: While some data has been successfully recovered, science data generation remains suspended. Engineering teams continue to investigate.

Update #1: Status on S-NPP data unchanged. Engineers still investigating anomaly.

Topic: S-NPP Data Delay

Date/Time Issued: June 04, 2026 2043Z
Product(s) or Data Impacted: S-NPP Data Products


Date/Time of Initial Impact: June 01, 2026 0144Z  


Date/Time of Expected End: TBD

Length of Outage:  TBD

Details/Specifics: S-NPP spacecraft entered anomaly mode at 0145Z. As a result, Stored Mission Data (SMD) for REV 75615 was not received, and no products are currently being generated. SMD data will not be available until further notice. Engineering teams are currently investigating the situation.


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