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Upper limits on spacecraft-induced ultraviolet emissions from the Space Shuttle (STS-61C)Results are reported from a search for band emission of N2, OH, O2, and NO in nightglow spectra obtained in January 1986 with the Johns Hopkins UV background experiment (UVX) flown on the Space Shuttle Columbia (STS-61C) at an altitude of 330 km. The experiment consisted of two Ebert monochromators spanning the spectral range from 1200 to 1700 A at 17-A resolution and from 1600 to 3200 A at 29-A resolution. UV shuttle glow emission was not detected at a 330-km altitude with 3-sigma upper limits based on counting statistics on N2 LBH, O2 Herzberg, and NO delta, gamma, and beta of 5.3, 4.5, 0.6, 0.7, and 3.5 R of total band emission, respectively. The upper limit on the OH (A 2Sigma-u(+) - X2Pi)(0,0) and (1,0) band emission is 0.1 R. The branching ratio of the NO C2Pi state to the A2Sigma(+) state was determined from the UVX experiment by measuring the ratio of the total emission rate from the delta-band system to that of the gamma-band system. The branching ratio for the C2Pi state to the A2Sigma(+) state is 0.37 +/-0.03.
Document ID
19920041924
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Morrison, D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Feldman, P. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Henry, R. C.
(Johns Hopkins University Baltimore, MD, United States)
Date Acquired
August 15, 2013
Publication Date
February 1, 1992
Publication Information
Publication: Journal of Geophysical Research
Volume: 97
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
92A24548
Funding Number(s)
CONTRACT_GRANT: NAG5-619
Distribution Limits
Public
Copyright
Other

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