Topic: DSCOVR NORM to NORM Reset  

Date/Time Issued:  October 25, 2023 1513Z   

Product(s) or Data Impacted: DSCOVR Instruments   

Date/Time of Initial Impact:  November 01, 2023 1500Z   

Date/Time of Expected End: November 01, 2023 2030Z   

Length of Outage: Instrument outage varies, see detail outage below  

Details/Specifics of Change:

To alleviate rising trends of memory fragmentation on DSCOVR there is a planned NORM to NORM reset (commanded processor reset). This activity would result in a data outage for all instruments as the engineering team initiates a processor reset, recovers the spacecraft from safehold mode, and configures the spacecraft and instruments for science mode.  The primary customer, NOAA/NWS Space Weather Prediction Center (SWPC), will switch over to ACE as primary source during the DSCOVR Commanded Reset activities.

Estimated outage for DSCOVR instruments

Magnetometer - 1 hour, 45 minutes
Faraday Cup - 2 hours, 45 minutes
ESA - 3 hours, 45 minutes
EPIC - 29 hours (imaging stopping at 1900z on Oct 31, Resuming at 0000z on Nov 02 )
NISTAR - 56 hours (TBD due to a three part recovery that span several days)   

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880.    

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

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