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VIRTIS: Visible Thermal Infrared Spectrometer for the Rosetta mission

Arnold, G. and Carsenty, U. and Michaelis, H. and Mottola, S. and Neukum, G. and Peter, G. and Schade, U. und 39 weitere Autoren (1996) VIRTIS: Visible Thermal Infrared Spectrometer for the Rosetta mission. In: Imaging Spectrometry II SPIE Proceedings Series. Society of Photo-Optical Instrumentation Engineers.

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Abstract

The Visible Infrared Thermal Imaging Spectrometer (VIRTIS) is one of the principal payloads to be launched in 2003 on ESA's Rosetta spacecraft. Its primary scientific objectives are to map the surface of the comet Wirtanen, monitor its temperature, and identify the solids and gaseous species on the nucleus and in the coma. VIRTIS will also collect data on two asteroids, one of which has been identified as Mimistrobell. The data is collected remotely using a mapping spectrometer co-boresighted with a high spectral resolution spectrometer. The mapper consists of a Shafer telescope matched to an Offner grating spectrometer capable of gathering high spatial, medium spectral resolution image cubes in the 0.25 to 5 muem waveband. The high spectral resolution spectrometer uses an echelle grating and a cross dispersing prism to achieve resolving powers of 1200 to 3000 in the 1.9 to 5 muem band. Both sub-systems are passively cooled to 130 K and use two Sterling cycle coolers to enable two HgCdTe detector arrays to operate at 70 K. The mapper also uses a silicon back-side illuminated detector array to cover the ultra-violet to near-infrared optical band.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1996,
Title:VIRTIS: Visible Thermal Infrared Spectrometer for the Rosetta mission
Authors:
AuthorsInstitution or Email of Authors
Arnold, G.UNSPECIFIED
Carsenty, U.UNSPECIFIED
Michaelis, H.UNSPECIFIED
Mottola, S.UNSPECIFIED
Neukum, G.UNSPECIFIED
Peter, G.UNSPECIFIED
Schade, U. und 39 weitere AutorenUNSPECIFIED
Date:1996
Journal or Publication Title:Imaging Spectrometry II SPIE Proceedings Series
Publisher:Society of Photo-Optical Instrumentation Engineers
Series Name:2819
Status:Published
Keywords:Comet, Asteroid, Imaging Spectrometer, Echelle Grating, Infrared Instrument, Planetary Remote Sensing, VIRTIS
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:UNSPECIFIED
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Institut für Planetenerkundung
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 09:50

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