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Determination of SCIAMACHY LOS Misalignments

Gottwald, Manfred and Krieg, Eckhart and Slijkhuis, Sander and von Savigny, Christian and Noel, Stefan and Bovensmann, Heinrich and Bramstedt, Klaus (2007) Determination of SCIAMACHY LOS Misalignments. In: Proceedings of the ENVISAT Symposium 2007, pp. 1-6. ENVISAT Symposium 2007, 2007-04-23 - 2007-04-27, Montreux (Schweiz).

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Abstract

Certain geolocation parameters derived in the early analyses of SCIAMACHY's limb measurements deviated from the expected values. After a corrective action in the ENVISAT flight operation segment the situation improved significantly. However small inconsistencies persisted. These concern a still existing bias and a left-right asymmetry in the limb tangent heights. We speculate that the inconsistencies originate in additional small line-of-sight misalignments between SCIAMACHY and the platform. This view is supported by azimuth/elevation features observed in solar occultation and sub-solar measurements around times when scanner control is switched from prediction to Sun Follower. In a model approach we use these specific measurements of SCIAMACHY to quantitatively determine potential extra misalignments in pitch, roll and yaw. The approach uses the features in elevation and azimuth to simulate misalignment effects. Initial results agree well with observations.

Document Type:Conference or Workshop Item (Poster)
Title:Determination of SCIAMACHY LOS Misalignments
Authors:
AuthorsInstitution or Email of Authors
Gottwald, ManfredUNSPECIFIED
Krieg, EckhartUNSPECIFIED
Slijkhuis, SanderUNSPECIFIED
von Savigny, ChristianIUP-IFE, Universität Bremen
Noel, StefanIUP-IFE, Universität Bremen
Bovensmann, HeinrichIUP-IFE, Universität Bremen
Bramstedt, KlausIUP-IFE, Universität Bremen
Date:April 2007
Journal or Publication Title:Proceedings of the ENVISAT Symposium 2007
Page Range:pp. 1-6
Editors:
EditorsEmail
ESA, UNSPECIFIED
Series Name:SP-636
Status:Published
Keywords:SCIAMACHY, ENVISAT, limb profiles, mispointing, tangent height, misalignment, pitch, roll, yaw
Event Title:ENVISAT Symposium 2007
Event Location:Montreux (Schweiz)
Event Type:international Conference
Event Dates:2007-04-23 - 2007-04-27
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung von Atmosphärenprozessoren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Dr.rer.nat. Manfred Gottwald
Deposited On:25 May 2007
Last Modified:22 Apr 2013 08:53

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