Topic: S-NPP VIIRS Lunar Calibration Roll Maneuver Scheduled for May 14, 2019
Date/Time Issued: May 13, 2019 1610Z
Product(s) or Data Impacted: All S-NPP Sensor Data
Date/Time of Initial Impact: May 14, 2019 20:51:25Z
Date/Time of Expected End: May 14, 2019 21:53:25Z
Length of Outage: See Details.
Details/Specifics of change: On May 14, 2019, S-NPP will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -3.1 degrees centered at 21:16:25Z. 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 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 May 14, 2019:
20:51:25 Z M-bM-^@M-^S 21:53:25 Z M-BCERES will be in Contam-Safe and Standby, science data will not be available
21:06:25 Z M-bM-^@M-^S 21:28:25 Z M-BHRD will be off, data for direct broadcast users will be unavailable
21:10:55 Z M-bM-^@M-^S 21:23:56 Z M-BVIIRS encoder offset and gain will be set for Moon observation
21:11:25 Z M-bM-^@M-^S 21:23:25 Z M-BS-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 at 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.