NOAA-20 VIIRS Lunar Calibration Roll Maneuver Scheduled for
March 27, 2018
Date/Time Issued: March 23 2018 20:07Z
Product(s) or Data Impacted: All NOAA 20 Sensor Data
Date/Time of Initial Impact: March 27, 2018 12:09:25Z
Date/Time of Expected End: March 27, 2018 13:05:25Z
Length of Outage: See Details.
Details/Specifics of Change: On March 27, 2018, NOAA 20 will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -1.29 degrees centered at 12:32:25Z. 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 placed in a contamination safe mode. The timeline of events for this maneuver are provided below.
The following observatory systems will be affected on 2018 March 27:
12:09:25 Z M-bM-^@M-^S 13:05:25 Z M-BCERES will be in Contam-Safe, science data will not be available
12:28:52 Z M-bM-^@M-^S 12:35:56 Z M-BVIIRS encoder offset and gain will be set for Moon observation
12:29:25 Z M-bM-^@M-^S 12:35:25 Z M-BS-NPP will be pointing off-nadir, collected data may be impacted and not disseminated
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