Topic: S-NPP VIIRS Lunar Calibration Roll Maneuver Scheduled for December 7, 2019
Date/Time Issued: December 3, 2019 1905Z
Product(s) or Data Impacted: All S-NPP Sensor Data
Date/Time of Initial Impact: December 7, 2019 1928Z
Date/Time of Expected End: December 7, 2019 2030Z
Length of Outage: See Details.
Details/Specifics of change: On December 7, 2019, S-NPP will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -6.315 degrees centered at 1953Z. 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 December 7, 2019:
19:28:58 Z M-bM-^@M-^S 20:30:58 Z CERES will be in Contam-Safe and Standby, science data will not be available
19:43:58 Z M-bM-^@M-^S 20:05:58 Z HRD will be off, data for direct broadcast users will be unavailable
19:48:28 Z M-bM-^@M-^S 20:01:29 Z VIIRS encoder offset and gain will be set for Moon observation
19:48:58 Z M-bM-^@M-^S 20:00:58 Z S-NPP will be pointing off-nadir, collected data may be impacted and not disseminated
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880.
Web Site(s) for applicable information: N/A
This message was sent by ESPC.Notification@noaa.gov. You have been sent this and other notifications because you have opted in to receive it. If for any reason, you wish to unsubscribe, please contact ESPC Help Desk at ESPCOperations@noaa.gov or (301) 817-3880. Please note: it may take up to two business days to process your unsubscribe request.