Topic: Suomi-NPP Lunar Roll Maneuver is scheduled for December 2, 2014

Date/Time Issued: November 26, 2014 1845 UTC

Product(s) or Data Impacted: All Suomi-NPP Sensor data

Date/Time of Initial Impact: December 02, 2014 0816 UTC

Date/Time of Expected End: December 02, 2014 0918 UTC

Length of Outage: See Details

Details/Specifics of Change: On Tuesday, December 02, 2014 Suomi-NPP will perform a spacecraft attitude maneuver for VIIRS Lunar Calibration; a roll of -10.841 degrees, centered at 2014-12-02T08:41:44 UTC. 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 December 02, 2014:

08:16:44 UTC - 09:18:44 UTC CERES in Contam-Safe mode, science data will not be available.
08:31:44 UTC - 08:53:44 UTC HRD will be off, data for direct broadcast users will be unavailable.
08:36:14 UTC - 08:49:13 UTC VIIRS encoder offset and gain will be set for Moon observation
08:36:44 UTC - 08:48:44 UTC S-NPP pointing off nadir and collected data during that time period may be impacted.

Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov at 301-817-3880

Web Site(s) for applicable information:
See http://www.ssd.noaa.gov/PS/SATS/messages.html for this and other satellite related messages.
See http://cimss.ssec.wisc.edu/cspp/npp_sdr_v2.0.1.shtml for additional information about Community Satellite Processing Package.

This message was sent to 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.