Computer Science – Performance
Scientific paper
Sep 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992adspr..12q..91b&link_type=abstract
(Recent results on Mars and Venus; Proceedings of Symposium 3 and the Topical Meetings of the Interdisciplinary Scientific Commi
Computer Science
Performance
1
Galileo Spacecraft, Spaceborne Photography, Venus (Planet), Venus Surface, Atmospheric Circulation, Image Analysis, Infrared Imagery, Television Cameras, Venus Clouds
Scientific paper
Three images of Venus have been returned so far by the Galileo spacecraft following an encounter with the planet on UT February 10, 1990. The images, taken at effective wavelengths of 4200 and 9900 A, characterize the global motions and distribution of haze near the Venus cloud tops and, at the latter wavelength, deep within the main cloud. Previously undetected markings are clearly seen in the near-infrared image. The global distribution of these features, which have maximum contrasts of 3 percent, is different from that recorded at short wavelengths. In particular, the 'polar collar', which is omnipresent in short wavelength images, is absent at 9900 A. The maximum contrast in the features at 4200 A is about 20 percent. The optical performance of the camera is described and is judged to be nominal.
Anger Clifford D.
Belton Michael J. S.
Carr Michael H.
Chapman Clark R.
Davies Mike E.
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