Topic: NOAA-21 VIIRS Mid-Mission Outgassing Activity Scheduled from February 26, 2024 to February 29, 2024 

Date/Time Issued: February 13, 2024 02:22Z

Product(s) or Data Impacted: JPSS NOAA-21 VIIRS and OMPS Sensor Data

Date/Time of Initial Impact: February 26, 2024 00:00Z

Date/Time of expected end Time:  February 29, 2024 23:59Z

Duration:  4 Days 

Details/Specifics of change:  On February 26, 2024, NOAA-21 will start a Mid-Mission Outgassing Activity as a routine procedure before the satellite is declared as the primary JPSS spacecraft later this year. During this activity, VIIRS will be in Outgassing Mode, and OMPS will be in DECOM (decontamination mode). The end time of the activity is approximate, and an updated notice will be issued during the course of the activity.

 The following observatory systems will be affected on February 26, 2024:

February 26, 2024 00:00Z – February 29, 2024 23:59Z, OMPS will be in DECOM (decontamination mode) and science data will not be available

February 26, 2024 00:00Z – February 29, 2024, 23:59Z, VIIRS will be in Outgassing Mode, science data will not be available

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