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High-dispersion spectroscopic observations of Venus during 1968 and 1969 II. The carbon-dioxide band at 8689AThirty well-exposed photographic plates showing the spectrum of the carbon dioxide band at 8689A in the atmosphere of Venus were obtained during 1968 and 1969. All spectra were obtained at a dispersion of 2 A/mm for Venus phase angles varying from 10 deg. to 126 deg. Rotational temperatures ranging from 236 K to 274 K were found. The average value of the rotational temperature is 246 + or - 1 K (one standard deviation); for 1967 observations, the rotational temperatures ranged from 222 to 248 K, with an average value of 238 + or - 4 K. The variation of the equivalent width of the 8689A band, with Venus phase angle, was very similar for the two sets of observations (53 plates). The temporal variations, of approximately 30 percent, were comparable with the phase variations over this limited range of phase angle.
Document ID
19740026171
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Schorn, R. A. J. (Texas A&M Univ. College Station, TX, United States)
Woszczyk, A. (Nicolaus Copernicus Univ. College Station, TX, United States)
Young, L. D. G. (Texas A&M Univ.)
Date Acquired
September 3, 2013
Publication Date
June 28, 1974
Subject Category
Space Sciences
Report/Patent Number
NASA-CR-140399
REPT-10
Accession Number
74N34284
Funding Number(s)
CONTRACT_GRANT: NGR-44-001-117
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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