Topic: S-NPP Drag Make-UP (DMU) Maneuver scheduled for
September 8, 2016
Date/Time Issued: September 7, 2016 1830Z
Product(s) or Data Impacted: All S-NPP Sensor Data
Date/Time of Initial Impact: September 8, 2016
12:00Z
Date/Time of Expected End: September 8, 2016 22:00Z
Length of Outage: See Details.
Details/Specifics of Change: On September 8, 2016 at
16:00:00Z, S-NPP will perform a 2.0 second propulsive Drag
Make-UP
(DMU) maneuver to maintain Repeating Ground Track. Due to
the DMU
activities, some of the ATMS Scan Reversals will not occur.
During the period of DMU preparation and activities, ATMS Scan
Reversals will be manually commanded to minimize skipped
reversals, but may not occur exactly at stepped latitudes
and thus
small data gaps may be introduced.
The following observatory systems will be affected on September
8,
2016.
12:00:00Z – 22:00:00Z ATMS Scan Reversal will be manually
commanded, some reversals will be missed.
15:34:00Z – 17:41:04Z CERES in Contam-Safe mode, science data
will not be available
15:44:00Z – 16:11:06Z OMPS in Decon mode, Science data
will not
be available
15:49:00Z - 16:12:04Z HRD will be off, data for direct
broadcast
users will be unavailable
15:54:00Z – 16:07:04Z S-NPP 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
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