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Cassini Enceladus orbit 3 imaging
The highest resolution Enceladus images from the orbit 3 flyby was
60m/pixel from a distance of ~10,000 km. The closest distance to Enceladus on the flyby was ~1200 km. What was the reason for no images from closer than ~10,000 km. Night side flyby? If so, was this required to set up for the following 500 km flyby on orbit 4? Will the orbit 4 flyby allow imaging at closest approach, or would the relative flyby speed be greater than Cassini tracking capability for smear reduction? The Titan-3 Flyby Mission Description on the Cassini website was sadly lacking in any description of the Enceladus flyby geometry, coverage, etc. The JPL PIO should consider putting this info on the web for the orbit 4 flyby. |
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Andrew Gray wrote: On 2005-02-21, wrote: The highest resolution Enceladus images from the orbit 3 flyby was 60m/pixel from a distance of ~10,000 km. The closest distance to Enceladus on the flyby was ~1200 km. What was the reason for no images from closer than ~10,000 km. Night side flyby? If so, was this required to set up for the following 500 km flyby on orbit 4? Bad geometry? They were still coming out of the Titan flyby, and may have been too involved with transmitting data from that to be in a good position for imagery? -- -Andrew Gray Another possibility I neglected to note was for coverage, i.e., the EO3 flyby was on the outside of Enceladus (relative to Saturn), and the EO4 flyby will be on the inside. |
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