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NRT Notification Detail
| Re: Degraded GRAS data at high altitudes |
| DATE: 2010-05-04 07:45 TYPE: NRT-GTS |
| Description |
| Dear GRAS SAF GTS User Issued: 2010-05-04 07:45 UTC The quality of the GRAS bending angle data has recovered. Please see detailed message from EUMETSAT below. Kind Regards The GRAS SAF Team Forwarded message: Subject: RE: Degraded GRAS bending angle data at high (> 35 km) altitudes From: Dr. Christian Marquardt Date: 2010-05-03 19:23 UTC Dear all, the upper level bending angle biases exhibited by the GRAS data I reported on earlier today (see below) stabilized during the day (at a level of ± 4 microradians at 60 km altitude), but did not completely recover by themselves. In the afternoon, we eventually transferred a converged POD state vector we had obtained from a very early manual POD reset on one of our test ground segments into the operational processing and achieved an instant orbit recovery at 14:30 UTC. Level 1b products from this time onwards exhibit nominal data quality again. Christian. -- Dr. Christian Marquardt, Polar System Product Expert EUMETSAT, Am Kavalleriesand 31, D-64295 Darmstadt, Germany |
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