December weather is usually uncooperative, but with Jupiter's opposition occurring on Dec. 3, a season of frequent Jovian satellite shadow transits begins. On pages of 242-243 of the 2012 RASC Handbook, the following mostly early morning Jovian shadow transits are listed. (Great Red Spot transit times are from the online Sky & Telescope Jovian transit time calculator.) Local times are for my OP in the MST time zone.
UT Time/Local Time MST
11-26 6:33-9:17 UT II ShI-E, TrI-E
Great Red Spot transit at 10:40 UT.
11-25 11:33pm to 11-26 2:17 MST (Sun evening - Monday morning)
11-29 8:54-11:10 UT I ShI-E, TrI-E
Great Red Spot transit at 8:09 UT.
11-29 1:54am-4:10 MST (Thurs morning)
12-3 9:09-11:34 UT II ShI-E, TrI-E
Great Red Spot transit at 11:25 UT.
12-3 2:09am-4:34 MST (Sun evening -Mon morning)
After opposition on 12-3, the order of events changes from ShI first, TrI second to
TrI first, ShI second.
12-8 5:09-7:28 UT I TrI-E, ShI-E
12-7 10:09pm to 12-8 2:28 MST (Fri evening - Sat morning)
12-13 5:39-8:45 UT III TriI-E, ShI-E
12-12 10:39pm to 12-13 1:45 MST (Wednesday evening - Thursday morning)
12-14 2:52-3:38 UT II Tr-E, Sh-E (partial)
Maximum of the Geminid meteor shower is at 12-13 23:30 UT. Jupiter will be in Taurus, about 45 degs from the radiant.
12-13 7:52pm-9:38pm MST (Friday evening)
12-15 6:52-9:23 UT I TrI-E, ShI-E
12-14 11:52pm to 12-15 2:23 MST (Friday evening - Saturday morning)
12-17 3:29-3:52 UT I TrE-ShE (Partial)
Great Red Spot transit at 3:00 UT.
12-16 8:29-8:52pm MST (Sunday night)
12-20 8:55-12:26 UT III TrI-E, ShI-E
Great Red Spot transit at 10:25 UT.
12-20 1:55am-5:26 MST (Thursday morning)
12-21 2:45-6:04 UT II TrI-E, ShI-E (partial)
Great Red Spot transit at 6:16 UT.
12-20 7:45pm-11:04 MST (Thursday night)
12-22 8:37-11:18 UT I TrI-E, ShI-E
12-22 1:37am-4:18 MST (Saturday morning)
12-24 3:04-5:47 UT I TrI-E, ShI-E
Great Red Spot transit at 3:45 UT.
12-23 8:04pm-10:47 MST (Sunday night)
12-28 5:01-8:40 UT II TrI-E, ShI-E
Great Red Spot transit at 7:02 UT.
12-27 10:01pm to 12-28 1:40 MST (Thursday evening to Friday morning)
12-29 10:23-13:13 UT I TrI-E, ShI-E
Great Red Spot transit at 12:48 UT.
12-29 3:23am-6:13 MST (Saturday morning)
12-31 4:49-7:42 UT I TrI-E, ShI-E
Great Red Spot transit at 4:31 UT.
12-30 9:49pm to 12-31 00:42am MST (Sunday night to Monday morning)
Clear Skies - Kurt
A month of extraordinary Jovain shadow transits
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