Topic: S-NPP Planned Product Outage VIIRS Data

Date/Time Issued: January 31, 2019 2050Z
Product(s) or Data Impacted: S-NPP VIIRS Sensor/Science Data
Date/Time of Initial Impact: February 1, 2019 1430Z
Date/Time of Expected End: February 1, 2019 1830Z

Length of Outage: 4 hours

Details/Specifics of change:On 01/28/2019 the S-NPP VIIRS suffered an uncorrectable Error Detection and Correction (EDAC) error. After further analysis by OSPO mission operations and the vendor it was recommended to perform a controlled control processor (CP) reset.The error occurred within a portion of the memory that manages the data buffers for the 1394 bus.This indicates potential for data corruption. VIIRS hardware is not in any danger and J1 Data can be used as a comparison any obvious problems with the data present themselves. Performing the VIIRS CP reset and recovery during cited times above will rectify the error.

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