Topic: S-NPP VIIRS Lunar Calibration Roll Manuever Scheduled for February 18, 2016
Date/Time Issued: February 17, 2016 2300Z
Product(s) or Data Impacted: All Suomi-NPP Sensor Data
Date/Time of Initial Impact: February 18, 2016, 0753Z
Date/Time of Expected End: February 18, 2016, 0855Z
Length of Outage: N/A
Details/Specifics of Change: On February 18, 2016, Suomi-NPP will perform a spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a roll of -3.3312 degrees centered at 08:18:15Z. 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 2016 February 18: 07:53:15Z – 08:55:15Z CERES will be in Contam-Safe, science data will not be available 08:08:15Z – 08:30:15Z HRD will be off, data for direct broadcast users will be unavailable 08:12:45Z – 08:25:46Z VIIRS encoder offset and gain will be set for Moon observation 08:13:15Z – 08:25:15Z S-NPP will be pointing off-nadir, collected data during that time period 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