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Observations with the Visual and Infrared Mapping Spectrometer (VIMS) during Cassini’s flyby of Jupiter

Brown, R.H. and Baines, K.H. and Bellucci, G. and Bibring, J.-P. and Buratti, B.J. and Capaccioni, F. and Cerroni, P. and Clark, R.N. and Coradini, A. and Cruikshank, D.P. and Drossart, P. and Formisano, V. and Jaumann, R. and Langevin, Y. and Matson, D.L. and McCord, T.B. (University of Hawaii, HIGP/SOEST, Honolulu, HI, USA), and Mennella, V. and Nelson, R.M. and Nicholson, P.D. and Sicardy, B. and Sotin, C. and Amici, S. and Chamberlain, M.C. and Filacchione, G. and Hansen, G. and Hibbitts, K. and Showalter, M. (2003) Observations with the Visual and Infrared Mapping Spectrometer (VIMS) during Cassini’s flyby of Jupiter. Icarus, 146 (2), pp. 461-470.

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Abstract

The Cassini Visual and Infrared Mapping Spectrometer (VIMS) is an imaging spectrometer covering the wavelength range 0.3-5.2 ¼m in 352 spectral channels, with a nominal instantaneous field of view of 0.5 mrad. The Cassini flyby of Jupiter represented a unique opportunity to accomplish two important goals: scientific observations of the jovian system and functional tests of the VIMS instrument under conditions similar to those expected to obtain during Cassini's 4-year tour of the saturnian system. Results acquired over a complete range of visual to near-infrared wavelengths from 0.3 to 5.2 ¼m are presented. First detections include methane fluorescence on Jupiter, a surprisingly high opposition surge on Europa, the first visual-near-IR spectra of Himalia and Jupiter's optically-thin ring system, and the first near-infrared observations of the rings over an extensive range of phase angles (0-120°). Similarities in the center-to-limb profiles of H+3 and CH4 emissions indicate that the H+3 ionospheric density is solar-controlled outside of the auroral regions. The existence of jovian NH3 absorption at 0.93 ¼m is confirmed. Himalia has a slightly reddish spectrum, an apparent absorption near 3 ¼m, and a geometric albedo of /0.06+/-0.01 at 2.2 ¼m (assuming an 85-km radius). If the 3-¼m feature in Himalia's spectrum is eventually confirmed, it would be suggestive of the presence of water in some form, either free, bound, or incorporated in layer-lattice silicates. Finally, a mean ring-particle radius of 10 ¼m is found to be consistent with Mie-scattering models fit to VIMS near-infrared observations acquired over 0-120° phase angle.

Item URL in elib:https://elib.dlr.de/10877/
Document Type:Article
Additional Information: LIDO-Berichtsjahr=2003,
Title:Observations with the Visual and Infrared Mapping Spectrometer (VIMS) during Cassini’s flyby of Jupiter
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Brown, R.H.Lunar and Planetary Lab and Steward Observatory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Baines, K.H.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Bellucci, G.Instituto di Fisica dello Spazio Interplanetario, CNR, Rome, ItalyUNSPECIFIED
Bibring, J.-P.Institut d’Astrophysique Spatiale, Université de Paris, Orsay, FranceUNSPECIFIED
Buratti, B.J.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Capaccioni, F.Instituto di Astrofisica Spatiale, CNR, Rome, ItalyUNSPECIFIED
Cerroni, P.Instituto di Astrofisica Spatiale, CNR, Rome, ItalyUNSPECIFIED
Clark, R.N.U.S. Geological Survey, Denver, CO, USAUNSPECIFIED
Coradini, A.Instituto di Astrofisica Spatiale, CNR, Rome, ItalyUNSPECIFIED
Cruikshank, D.P.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Drossart, P.Observatoire de Paris, Meudon, FranceUNSPECIFIED
Formisano, V.Instituto di Fisica dello Spazio Interplanetario, CNR, Rome, ItalyUNSPECIFIED
Jaumann, R.UNSPECIFIEDUNSPECIFIED
Langevin, Y.Institut d’Astrophysique Spatiale, Université de Paris, Orsay, FranceUNSPECIFIED
Matson, D.L.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
McCord, T.B. (University of Hawaii, HIGP/SOEST, Honolulu, HI, USA), Department of Earth and Space Sciences, University of Washington, Seattle, WA, USAUNSPECIFIED
Mennella, V.INAF, Osservatorio Astronomico di Capodimonte, Rome, ItalyUNSPECIFIED
Nelson, R.M.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Nicholson, P.D.Cornell University, Astronomy Department, Ithaca, NY, USAUNSPECIFIED
Sicardy, B.Observatoire de Paris, Meudon, FranceUNSPECIFIED
Sotin, C.Laboratoire de Planetologie et Geodynamique, Université de Nantes, Nantes, FranceUNSPECIFIED
Amici, S.Instituto di Astrofisica Spatiale, CNR, Rome, ItalyUNSPECIFIED
Chamberlain, M.C.Lunar and Planetary Lab and Steward Observatory, University of Arizona, Tucson, AZ, USAUNSPECIFIED
Filacchione, G.Instituto di Astrofisica Spatiale, CNR, Rome, ItalyUNSPECIFIED
Hansen, G.Department of Earth and Space Sciences, University of Washington, Seattle, WA, USAUNSPECIFIED
Hibbitts, K.Department of Earth and Space Sciences, University of Washington, Seattle, WA, USAUNSPECIFIED
Showalter, M.NASA Ames Research Center, Moffett Field, CA, USAUNSPECIFIED
Date:2003
Journal or Publication Title:Icarus
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:146
Page Range:pp. 461-470
Status:Published
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Pieth, Susanne
Deposited On:08 Dec 2005
Last Modified:14 Jan 2010 16:25

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