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IRTF Post-Impact Image of Jupiter


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Impact dust imaging, April 15 1995

On 1995/04/15, at around 12:30 UT, we obtained high-resolution 2.3 micron images of Jupiter with the GRS near the meridian, using the NSFCAM infrared camera at the IRTF on Mauna Kea.

The impact latitudes are still quite bright in the 2.3 micron methane band, comparable to the north equatorial haze band but much fainter than the polar haze caps. The brightness extends all the way south to the south polar haze cap, but has a fairly sharp, undulating northern boundary. There is a great deal of wispy structure at latitudes immediately north of the sharp boundary of the brighter band at the impact latitude, presumably due to impact dust drifting northward. The wispy structure extends to the neighborhood of the GRS.

John Spencer, Lowell Observatory; Christophe Dumas, University of Hawaii

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