Talk:GEOS-5 ADAS Radiance Monitoring: Difference between revisions
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* On September 11, 2023 at 16:20 UTC during rev 94379 the NOAA-18 satellite will be fully transitioned to Parsons (Command and Control) C2 Commercial Ground Services. This first transition of a POES satellite is an ongoing effort to extend the utility of the legacy POES satellite constellation by extending life through use of a commercial system called Ground Station as a Service (GSaaS) approach. The data and products from NOAA-18 will not be distributed while data quality evaluations are ongoing. Direct readout data from NOAA-18 will continue to be made available to those users of that service. | * On September 11, 2023 at 16:20 UTC during rev 94379 the NOAA-18 satellite will be fully transitioned to Parsons (Command and Control) C2 Commercial Ground Services. This first transition of a POES satellite is an ongoing effort to extend the utility of the legacy POES satellite constellation by extending life through use of a commercial system called Ground Station as a Service (GSaaS) approach. The data and products from NOAA-18 will not be distributed while data quality evaluations are ongoing. Direct readout data from NOAA-18 will continue to be made available to those users of that service. | ||
* The other satellites (NOAA-15, NOAA-19) have also experienced briefer data losses in late September and early October due to supporting POES EL (Extended Life) ground system testing. | * The other satellites (NOAA-15, NOAA-19) have also experienced briefer data losses in late September and early October due to supporting POES EL (Extended Life) ground system testing. | ||
== MetOp-C AMSU-A increased noise level ch 4 == | |||
* Noise levels for MetOp-C AMSU-A channel have been increasing with an accelerated rate since mid-2022. In early October 2023 the number of rejected data for the channel increased significantly, with an increased number of missing values starting around 7 Oct 2023. The rejected data increased until nearly all of the radiances for channel 4 in the operational stream were missing by 20 Oct. The missing radiances for channel 4 led to rejection of other channels (ch 5, 6) on the instrument. | |||
* Due to the large number of rejections, Channels 4,5, and 6 were turned off in FP and in GEOSIT as of 20231020 12UTC. Shortly after that date (24 Oct) the radiance processing was modified and channel 4 data resumed (albeit noisy). Ch 4,5,6 remain turned off for MetOp-C AMSUA. | |||