International Ultraviolet Explorer (IUE) observations of Ganymded demonstrate decade length or less temporal variations at a few discreet trailing side longitude regions. The temporal changes are seen in comparisons of IUE spectra from 1984-1986 with new IUE observations from 1996. Variations are observed on the trailing side associated with the new detection of SO2 frost. A distinctive SO2 frost spectral signature at 0.32 µm is detected in the 1984-1986 spectra of trailing side regions from 225° to 285° which are absent in corresponding 1996 measurements.
Geophysical Research Letters
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- Planetology: Solid Surface Planets: Remote sensing;
- Planetology: Solid Surface Planets: Surface materials and properties;
- Planetology: Solid Surface Planets: Composition;
- Planetology: Solar System Objects: Jovian satellites