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Pioneer Saturn Infrared Radiometer: Preliminary Results

Ingersoll, A. P. and Orton, G. S. and Münch, G. and Neugebauer, G. and Chase, S. C. (1980) Pioneer Saturn Infrared Radiometer: Preliminary Results. Science, 207 (4429). pp. 439-443. ISSN 0036-8075. doi:10.1126/science.207.4429.439. https://resolver.caltech.edu/CaltechAUTHORS:20130422-075114529

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Abstract

The effective temperature of Saturn, 94.4 + 3 K, implies a total emission greater than two times the absorbed sunlight. The infrared data alone give an atmospheric abundance of H_2 relative to H_2 + He of 0.85 ± 0.15. Comparison of infrared and radio occultation data will give a more precise estimate. Temperature at the 1-bar level is 137 to 140 K, and 2.5 K differences exist between belts and zones up to the 0.06-bar level. Ring temperatures range from 60 to 70 K on the south (illuminated) side and from < 60 to 67 K in the planet's shadow. The average temperature of the north (unilluminated) side is ~ 55 K. Titan's 45-micrometer brightness temperature is 80 ± 10 K.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1126/science.207.4429.439DOIArticle
http://www.jstor.org/stable/info/1684158PublisherArticle
ORCID:
AuthorORCID
Ingersoll, A. P.0000-0002-2035-9198
Orton, G. S.0000-0001-7871-2823
Additional Information:© 1980 American Association for the Advancement of Science. 3 December 1979. We thank the members of the Pioneer Project and Deep Space Network particularly the staff at the Madrid Tracking Station during the IRR viewing period of Titan. The able assistance of G. W. Garneau of the Image Processing Laboratory is gratefully acknowledged. Conservations with P. Goldreich, B. M. Jakobsky, and D. O. Muhleman have been most helpful.
Group:UNSPECIFIED, Division of Geological and Planetary Sciences
Issue or Number:4429
DOI:10.1126/science.207.4429.439
Record Number:CaltechAUTHORS:20130422-075114529
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20130422-075114529
Official Citation:Pioneer Saturn Infrared Radiometer: Preliminary Results A. P. Ingersoll, G. S. Orton, G. Münch, G. Neugebauer and S. C. Chase Science , New Series, Vol. 207, No. 4429 (Jan. 25, 1980), pp. 439-443 Published by: American Association for the Advancement of Science Article Stable URL: http://www.jstor.org/stable/1684158
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:38056
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:23 Apr 2013 15:28
Last Modified:09 Nov 2021 23:33

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