Topic: S-NPP VIIRS Lunar Calibration Roll Maneuver
Scheduled for November 19, 2018
Date/Time Issued: November 15, 2018 1750Z
Product(s) or Data Impacted: All S-NPP Sensor Data
Date/Time of Initial Impact: November 19, 2018 00:39:26Z
Date/Time of Expected End: November 19, 2018 01:41:26Z
Length of Outage: See Details.
Details/Specifics of change: On November 19, 2018,
S-NPP will perform a spacecraft attitude maneuver for the VIIRS
Lunar Calibration, with a roll of -3.177 degrees centered at
01:04:26Z. 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 2018
November 19:
00:39:26 Z M-bM-^@M-^S 01:41:26 Z M-BCERES will be in Contam-Safe, science
data will not be available
00:54:26 Z M-bM-^@M-^S 01:16:26 Z M-BHRD will be off, data for direct
broadcast users will be unavailable
00:58:56 Z M-bM-^@M-^S 01:11:57 Z M-BVIIRS encoder offset and gain will be set
for Moon observation
Contact Information for Further Information: ESPC Operations at ESPCOperations@noaa.gov and 301-817-3880.
Web Site(s) for applicable information: N/A
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