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Published July 1988 | public
Journal Article

Mariner 9 Television Calibration—Revisited

Abstract

Improved processing of the Mariner 9 Television data allows more accurate photometric analysis of the images returned in 1971–1972 by the first successful Mars-orbiting spacecraft. These data include good synoptic coverage of the planet and the highest resolution images yet obtained of the south polar region. Errors in calibration are comparable to (but still greater than) those of the Viking orbiter cameras. Calibration data and software are now available to interested parties as part of the Planetary Image Cartography System through the U.S. Geological Survey in Flagstaff, Arizona.

Additional Information

© 1988 by Academic Press, Inc. Received July 6, 1987; revised December 4, 1987. We thank Professor James Westphal for use of his VAX 11-780 computer and peripherals and Paul Jepsen for help in deciphering the Mariner 9 residual image calibration data and recreating reduction algorithms. Kay Edwards and Eric Eliason helped solve various problems along the way, Tom Thorpe provided helpful information, and Nancy Evans and Martha Baxter succeeded in their searches for archival Mariner 9 data and documentation; we are thankful to them all. The critical reviews of this paper by Andy Young and an anonymous referee are also appreciated. This work was supported by NASA Grants NAGW-549 and NGT-50096.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023