Published January 25, 1980
| public
Journal Article
Pioneer Saturn Infrared Radiometer: Preliminary Results
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.
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.Additional details
- Eprint ID
- 38056
- DOI
- 10.1126/science.207.4429.439
- Resolver ID
- CaltechAUTHORS:20130422-075114529
- Created
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2013-04-23Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences