Topic: NOAA 20 VIIRS Lunar Calibration Roll Maneuver Scheduled for May 01, 2023
Date/Time Issued: April 28, 2023 1802Z
Product(s) or Data Impacted: All NOAA 20 Sensor Data
Date/Time of Initial Impact: May 01, 2023 07:17:01Z
Date/Time of Expected End: May 01, 2023 08:19:01Z
Length of Outage: See Details.
Details/Specifics of change:
On May 01, 2023, NOAA-20 will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -3.08 degrees centered at 07:42:01Z. Science data may be impacted while the spacecraft is pointing off-nadir during the attitude maneuver and the CERES instrument will not provide nominal science data as it will be placed in a contamination safe mode. The timeline of events for this maneuver are provided below.
The following observatory systems will be affected on 2023 May 01:
07:17:01Z – 08:19:01Z CERES will be in Contam-Safe and Standby, science data will not be available
07:36:29Z – 07:49:33Z VIIRS encoder offset and gain will be set for Moon observation
07:37:01Z – 07:49:01Z NOAA-20 will be pointing off-nadir, collected data may be impacted and not disseminated
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880