Jovian System Data Analysis Program
Cover Page/Proposal Summary
ROSS-99 NRA 99-OSS-01
Date Due: 5/5/99
This proposal shall be used and disclosed for evaluation purposes only, and a copy of this Government notice shall be applied to any reproduction or abstract thereof. Any authorized restrictive notices that the submitter places on this proposal shall also be strictly complied with. Disclosure of this proposal for any reason outside the Government evaluation purposes shall be made only to the extent authorized by the Government. |
Proposal Type: New Proposal |
Proposal Category: Satellites and Rings |
Major Equipment Proposal? No |
Do you intend to submit an Education/Public Outreach (E/PO) proposal? No |
Proposal Title: |
Jovian Satellite and Atmosphere Studies using GEM Data |
Abbreviated Proposal Title: |
GEM Satellite and Atmosphere Studies |
Principal Investigator: |
Dr.
Robert Carlson Earth and Space Sciences Division Mail Stop 183-601 Jet Propulsion Lab. 4800 Oak Grove Drive Pasadena, CA 91109-8099 Phone: 818-354-2648 Fax: 818-393-3218 E-mail: rcarlson@issac.jpl.nasa.gov |
Signature | Date |
_____________________________________ | ____________ |
Co-Investigators and Collaborators: | |||
NONE |
Proposal Summary:
The Galileo GEM data, primarily those from the Near Infrared Mapping Spectrometer but also including data obtained by the Ultraviolet Spectrometer and Solid State Imager, will be be used to study the Jovian aurora, satellite atmospheres, surface composition of the satellites, and the crystal state of surface ice on Europa. The jovian auroral studies will include determination of the altitude of the infrared aurora (from jovian limb scans) and relationships to the visible and UV aurora. Satellite atmosphere studies are prompted by the discovery of a carbon dioxide atmosphere on Callisto. These studies will continue using spectra for other molecules (H2O, CO, OH, etc.) for Callisto and other galilean satellites. Surface hydrate materials, including newly-identified sulfuric acid hydrate, will be globally mapped for comparison to IR and UV sulfur dioxide determinations. The phase-angle scattering function of Europa, determined from GEM measurements, will be used do determine the relative abundance of hexagonal, cubic, and amorphous ice.