Topic: Suomi-NPP SCC Table 34 with Gyro axes alignments
scheduled for load on December 11, 2018
Date/Time Issued: December 10, 2018 2104Z
Product(s) or Data Impacted: No significant impacts
expected
Date/Time of Initial Impact: December 11, 2018 1615Z
Date/Time of Expected End: December 17, 2018 2000Z
Length of Outage: See details below
Detail/Specifics of Change: On December 11, 2018
during SVL 36906, AOS 16:13:34Z - LOS 16:25:54Z, SCC Table 34
containing updated Gyro axes alignment matrix and associated scale
factors will be loaded to the SNPP Spacecraft Control Computer
(SCC) in order to characterize Gyro axis alignment impacts on star
tracker performance during Lunar intrusions of the star tracker
FOV from December 12 through December 14. This updated table will
be flown on-board until the current SCC Table 34 is restored on
Monday Dec 17. No significant impact to spacecraft operations or
data is expected, however, there may be minor attitude
perturbations for several minutes after the new tables are loaded
on December 11, and when the original Table 34 is restored on
December 17.
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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