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Verification of the Sentinel-4 focal plane subsystem

Williges, Christian and Uhlig, Mathias and Hilbert, Stefan and Rossmann, Hanne and Buchwinkler, Kevin and Sebastian, Ilse and Hohn, Rüdiger and Reulke, Ralf (2017) Verification of the Sentinel-4 focal plane subsystem. International Society for Optics and Photonics. Earth Observing Systems, San Diego. DOI: 10.1117/12.2274407

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The Sentinel-4 payload is a multi-spectral camera system, designed to monitor atmospheric conditions over Europe from a geostationary orbit. The German Aerospace Center, DLR Berlin, conducted the verification campaign of the Focal Plane Subsystem (FPS) during the second half of 2016. The FPS consists, of two Focal Plane Assemblies (FPAs), two Front End Electronics (FEEs), one Front End Support Electronic (FSE) and one Instrument Control Unit (ICU). The FPAs are designed for two spectral ranges: UV-VIS (305 nm - 500 nm) and NIR (750 nm - 775 nm). In this publication, we will present in detail the set-up of the verification campaign of the Sentinel-4 Qualification Model (QM). This set up will also be used for the upcoming Flight Model (FM) verification, planned for early 2018. The FPAs have to be operated at 215 K ± 5 K, making it necessary to exploit a thermal vacuum chamber (TVC) for the test accomplishment. The test campaign consists mainly of radiometric tests. This publication focuses on the challenge to remotely illuminate both Sentinel-4 detectors as well as a reference detector homogeneously over a distance of approximately 1 m from outside the TVC. Selected test analyses and results will be presented.

Item URL in elib:https://elib.dlr.de/114330/
Document Type:Conference or Workshop Item (Speech)
Title:Verification of the Sentinel-4 focal plane subsystem
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Williges, Christianchristian.williges (at) dlr.deUNSPECIFIED
Uhlig, Mathiasmathias.uhlig (at) dlr.deUNSPECIFIED
Hilbert, StefanStefan.Hilbert (at) dlr.deUNSPECIFIED
Rossmann, Hannehannes.rossmann (at) dlr.deUNSPECIFIED
Buchwinkler, Kevinkevin.buchwinkler (at) dlr.deUNSPECIFIED
Sebastian, Ilseilse.sebastian (at) dlr.deUNSPECIFIED
Hohn, RüdigerAirbus DSUNSPECIFIED
Reulke, RalfRalf.Reulke (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1117/12.2274407
Publisher:International Society for Optics and Photonics
Series Name:Optical Engineering + Applications
Keywords:Copernicus, Sentinel-4, Radiometry, Earth Observation, Verification of Satellite Sensors
Event Title:Earth Observing Systems
Event Location:San Diego
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Optische Sensorik - Theorie, Kalibration, Verifikation
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Optical Sensor Systems
Deposited By: Reulke, Prof. Dr. Ralf
Deposited On:21 Sep 2017 13:22
Last Modified:21 Sep 2017 13:22

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