NUMBER 139
DATE: 02/07/95
Sector Processing Center (SPC):
During December, NOA, ESA, and JMA processed greater than 96% of A data into B1/B2 data, while AES processed 75% of A data into B1/B2 data.
Normal operations for December were reported by NOA, ESA, and JMA. No report was received from CSU.
ESA reported a change of gain back to step 9 from step 8 for the METEOSAT-5 Water Vapor channel on 1 December 94 at 0800 UTC.
AES reported a significant decline in signal strength from GOES-7 as it began drifting westward in December, causing the loss of 25% of the data; however, reception at CSU is expected to be somewhat better, so that a more complete dataset can be assembled from the AES and CSU collections.
Special Area Processing Center (SAPC):
No report received.
Satellite Calibration Center (SCC):
AC data were received for November 94 from NOAA-12, GMS-4 and GOES-7; AC data were received for December 94 from NOAA-12 and GMS-4. BC data for October 94 based on NOAA-12 for GMS-4 were sent to the GPC, but only the infrared results were useable. The SCC also reported receipt of the first AC data for GOES-8 from CSU. Work has started to predict image match-ups for NOAA-14, but the orbit parameters are not yet established.
Global Processing Center (GPC):
The GPC continued to receive B2 data, BC data and correlative data in a routine manner.
Production of NOAA-11 (preliminary) B3 data is complete. Final B3 data have been produced though March 93.
Production of NOAA-12 (preliminary) B3 data is current. Final B3 data have been produced through March 93.
Production of GOES-7 (preliminary) B3 data is current. The processing and merger of the UWS replacement B2 data has been completed. Final B3 data have been produced through June 92.
Production of METEOSAT-3 (preliminary) B3 data is current.
Production of METEOSAT-5 (preliminary) B3 data is current. Final B3 data for METEOSAT-4 have been produced through May 93.
Production of GMS-4 (preliminary) B3 data is current. Final B3 data have been produced through March 93.
Production of all INSAT-1 (preliminary) B3 data has been completed.
Production of the ice/snow and TOVS correlative datasets is on hold. TOV processing stopped in March 94 and snow/ice processing is complete through 91. We have sea ice data through 92 and snow data through 93.
Routine DX/D1/D2 re-processing continues: June, July and August 91 have been completed. Deliveries of DX/D1/D2 will begin next month once the documentation is completed.
ISCCP Central Archive (ICA):
The ICA continued to receive B1 data from NOA, AES, ESA, CSU and JMA and B3 and C data from the GPC in a routine manner.
The health of GMS-4, METEOSAT-3 (at 75 W), METEOSAT-5, GOES-7, GOES-8 and NOAA-12 remained good. GOES-7 is moving towards 135W and GOES-8 is moving towards 75W. There appears to be a problem with the IR calibration for GOES-8 that produces a systematic drift along a scan line at low radiances; however, this effect, possibly caused by the mirror in the optics, appears to be so systematic that it can be corrected for in the processing software. METEOSAT-3 may also be moving eastward to make room for GOES-8; operations will cease after May 95. There is still no information about the status of ELEKTRO. Launch of GMS-5 has been re-scheduled for 22 February 95. Launch of GOES-J is now scheduled for May 95. Launch of NOAA-K with a new series of instruments is planned for April 96.
Stage B3: July 83 - June 92
Stage CD: July 83 - December 91
Stage C1: July 83 - June 91
Stage C2: July 83 - June 91
Delivering sea ice correlative data for 93 to GPC.
Delivery backlog for B3 data = 24 months (with respect to planned schedule). B3 data for 108 months have been archived.
Delivery backlog for C1/C2 data = 36 months (with respect to planned schedule). C1 data for 96 months have been archived.