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Long-term changes in reflectivity and larger scale motions in the atmospheres of Jupiter and SaturnA multi-color, broad-band photographic program for monitoring atmospheric variability of Jupiter and Saturn with the 61-cm, f/75 telescope was continued. The archivial product consists of approximately 20 sequential images on 3 1/4 x 4 1/4 glass plates with a plate scale of 4.53 arc sec/mm. An eleven-step sensitometric wedge, recorded times of acquisition, and fiducial marks which determine the orientation of the plate, are recorded on each individual plate. This allows accurate positional measurements, as well as detailed relative surface brightness determinations. Detailed measurements of the Red Spot are being utilized in a study of zonal velocity variation and the ability to predict the longitude of the Red Spot during the Galileo mission. An ongoing 5-color series of Saturn has been maintained to map the seasonal changes in the belt-zone reflectivity. Digitization of a series of blue images containing the Red Spot and a series of red and blue images excluding the Red Spot are being processed and reduced to normalized surface brightness maps. This data is being utilized to map time-dependent brightness variations of selected features, belts, and ones.
Document ID
19870002979
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Beebe, R. F.
(New Mexico State Univ. Las Cruces, NM, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1986
Publication Information
Publication: NASA, Washington Reports of Planetary Astronomy, 1985
Subject Category
Lunar And Planetary Exploration
Accession Number
87N12412
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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