Topic: S-NPP VIIRS Lunar Calibration Roll Maneuver Scheduled for May 17, 2016
Date/Time Issued: May 13, 2016 2045Z
Product(s) or Data Impacted: All Suomi-NPP Sensor Data
Date/Time of Initial Impact: May 17, 2016 0336Z
Date/Time of Expected End: May 17, 2016 0438Z
Length of Outage: See Details
Details and Specifics of Change:
On May 17, 2016, Suomi-NPP will perform a
spacecraft attitude maneuver for the VIIRS Lunar Calibration, with a
roll of -2.6395 degrees centered at 04:01:05Z. 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 May 17:
03:36:05 Z – 04:38:05 Z CERES will be in Contam-Safe, science data
will not be available
03:51:05 Z – 04:13:05 Z HRD will be off, data for direct broadcast
users will be unavailable
03:55:35 Z – 04:08:36 Z VIIRS encoder offset and gain will be set for
Moon observation
03:56:05 Z – 04:08:05 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