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Calibration and performance of the Galileo solid-state imaging system in Jupiter orbit

Klaasen, Kenneth P. and Breneman, H. Herbert and Cunningham, William F. and Kaufman, James M. and Klemaszewski, James E. and Magee, Karl P. and McEwen, Alfred S. and Mortensen, Helen B. and Pappalardo, Robert T. and Senske, David A. and Sullivan, Robert J. and Vasavada, Ashwin R. (1999) Calibration and performance of the Galileo solid-state imaging system in Jupiter orbit. Optical Engineering, 38 (7). pp. 1178-1199. ISSN 0091-3286. doi:10.1117/1.602168.

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The solid-state imaging subsystem (SSI) on the National Aeronautics and Space Administration’s (NASA’s) Galileo Jupiter orbiter spacecraft has successfully completed its 2-yr primary mission exploring the Jovian system. The SSI has remained in remarkably stable calibration during the 8-yr flight, and the quality of the returned images is exceptional. Absolute spectral radiometric calibration has been determined to 4 to 6% across its eight spectral filters. Software and calibration files are available to enable radiometric, geometric, modulation transfer function (MTF), and scattered light image calibration. The charge-coupled device (CCD) detector endured the harsh radiation environment at Jupiter without significant damage and exhibited transient image noise effects at about the expected levels. A lossy integer cosine transform (ICT) data compressor proved essential to achieving the SSI science objectives given the low data transmission rate available from Jupiter due to a communication antenna failure. The ICT compressor does introduce certain artifacts in the images that must be controlled to acceptable levels by judicious choice of compression control parameter settings. The SSI team’s expertise in using the compressor improved throughout the orbital operations phase and, coupled with a strategy using multiple playback passes of the spacecraft tape recorder, resulted in the successful return of 1645 unique images of Jupiter and its satellites.

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Sullivan, Robert J.0000-0003-4191-598X
Vasavada, Ashwin R.0000-0003-2665-286X
Additional Information:© 1999 Society of Photo-Optical Instrumentation Engineers. Paper 980345 received Sep. 8, 1998; revised manuscript received Dec. 14, 1998; accepted for publication Jan. 20, 1999. The success of the Galileo orbital mission is due to the many individual contributions of the flight team and the Deep Space Network under the leadership of W. O’Neil, N. Ausman, R. Mitchell, and T. Johnson. T. Jones planned the SSI observations and playback sequences for the C3 and G7 orbits. Credit goes to the analysts of the JPL Multimission Image Processing Laboratory, including C. Stanley, T. Pauro, A. Culver, D. Jensen, and J. Yoshimizu, for reconstructing and processing the SSI images. A portion of the work described herein was performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.
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Subject Keywords:charge-coupled device camera; calibration; digital imaging; remote sensing; space instrumentation; astronomy; data compression
Issue or Number:7
Record Number:CaltechAUTHORS:20161005-152820327
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Official Citation:Kenneth P. Klaasen ; H. Herbert Breneman ; William F. Cunningham ; James M. Kaufman ; James E. Klemaszewski, et al. "Calibration and performance of the Galileo solid-state imaging system in Jupiter orbit", Opt. Eng. 38(7), 1178-1199 (Jul 01, 1999). ;
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70894
Deposited By: George Porter
Deposited On:14 Oct 2016 01:57
Last Modified:11 Nov 2021 04:36

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