Iapetus Encounter In January |
Iapetus Encounter In January |
Nov 29 2004, 04:38 PM
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Member Group: Members Posts: 154 Joined: 8-June 04 Member No.: 80 |
I heard about a peak on Iapetus that may be taller than Olympus Mons on Mars. I was wondering if the RADAR instrument will be used in the January encounter to verify this. What is the maximum distance the RADAR can be used?
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Dec 30 2004, 05:11 PM
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Senior Member Group: Moderator Posts: 3233 Joined: 11-February 04 From: Tucson, AZ Member No.: 23 |
QUOTE (BruceMoomaw @ Dec 29 2004, 11:44 PM) (1) Ah. So, judging from the Planetary Society's description, radar scatterometry of Iapetus WILL be obtained during this flyby. (By the way, Jason, you never did confirm for us that Cassini missed some of its planned measurements -- including the radar -- during its recent Dione flyby, or explain what caused the problem.) (2) It turns out that some researchers have been WAY ahead of us in noting both Iapetus' nonspherical, lumpy shape and the apparent implication that this moon has had the very devil knocked out of it at some point -- and that its whole developmental history has been radically different from that of Saturn's inner moons: http://protostar.aas.org/publications/baas...dps2000/329.htm http://www.lpi.usra.edu/meetings/lpsc2000/pdf/1596.pdf http://www.lpi.usra.edu/meetings/lpsc2000/pdf/1660.pdf 1) Not surprised considering the apparent difference in surface materials, between the Callisto-style Cassini Regio and the Rhea-style Reuxeveux Terra. I'm not certain what happened to that data. All I know is that some of the Dione data, other than ISS, was lost. 2) The non-spherical nature of Iapetus is not a new discovery, but it does provide for some annoyances. -------------------- &@^^!% Jim! I'm a geologist, not a physicist!
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