Topic:
NOAA-18 Reduced Gyro Test
Date/Time(UTC) Message Issued:
March 17, 2011, 1830 UTC
Satellite(s) Involved:
NOAA-18
Instrument(s) Involved:
All Instruments
Product(s) Involved/Affected:
All data and products from NOAA-18 (AVHRR, AMSU-A, AMSU-B, HIRS, MHS, SBUV)
Date/Time(UTC) of Initial Implementation:
March 23, 2011, Time 11:39 UTC
Date/Time(UTC) of Expected End:
March 24, 2011, Time 18:09 UTC
Details/Specifics of Change:
From 23 Mar 2011 at 11:39 UTC (orbit 30083) to 24 Mar 2011 at 18:09 UTC (orbit 30101), NOAA-18 will be placed into the Reduced Gyro Mode for a test. Products may be impacted with a slightly larger than normal attitude disturbances during this period. The performance of NOAA-18 instrument L1b data is expected to be similar to the counterpart of NOAA-15, which has been operated in the Reduced Gyro Mode since March 17, 2010.
The test will be ended on March 24th on REV 30101 AOS 17:55:20 UTC, and the spacecraft reconfigured for normal operation. The spacecraft will be commanded back to nominal mode on REV 30103 at 21:27:30.
Products that use NOAA-18 that will be affected:
- ATOVS Polar Soundings
- Radiation Budget
- Fire Identification Mapping and Monitoring Algorithm (FIMMA) for Hazard Mapping system (HMS) input
- CLAVR-X
- SST and Coastwatch
- Microwave Surface and Precipitation Products (MSPPS)
- Microwave Integrated Retrieval System (MIRS)
- Blended TPW
- Ozone: SBUV/2
- Ozone: TOAST
- Ensemble Tropical Rainfall Potential (eTRaP)
- Global Vegetation Index Products (GVI)
- AVHRR Winds
Contact Person(s) Name/Email/Phone Number for Questions:
ESPC Operations Crew Leader at ESPCOperations@noaa.gov and 301-817-3880 ESPC helpdesk