Topic: NOAA 21 VIIRS Lunar Calibration Roll Maneuver Scheduled for May 01, 2023
Date/Time Issued: April 28, 2023 1808Z
Product(s) or Data Impacted: All NOAA 21 Sensor Data
Date/Time of Initial Impact: May 01, 2023 07:50:09Z
Date/Time of Expected End: May 01, 2023 08:19:44Z
Length of Outage: See Details.
Details/Specifics of change:
On May 01, 2023, NOAA-21 will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -2.53 degrees centered at 08:06:12Z. Science data may be impacted while the spacecraft is pointing off-nadir during the attitude maneuver. The timeline of events for this maneuver are provided below.
The following observatory systems will be affected on 2023 May 01:
07:50:40Z – 08:19:43Z VIIRS encoder offset and gain will be set for Moon observation.
07:51:12Z – 08:19:12Z NOAA-21 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