Simultaneous Transits over Jupiter - Oct 28

Two of the Galilean satellites will be transiting Jupiter simultaneously for many North American observers during the evening of 2007 OCT 28. Later their two shadows will transit simultaneously. First Europa (#2) will begin a transit followed by its shadow. Then Io (#1) will begin a transit followed by its shadow.

Between 22:37:37 UT and 23:13:16 UT at least portions of two satellites will appear on the face of Jupiter. Between 23:30:21 UT and 00:56:56 UT at least portions of two shadows will appear on the face of Jupiter. Below are my predictions for the event timings.

Photos or descriptions of the event would be welcome additions to this thread.

I’ve prepared two graphics previewing the event. One is a view from above Jupiter’s north pole and the other is a view from Earth. To see them, click: http://www.curtrenz.com/astronomical.html

20:29:52 UT #2 Partial Transit Begins
20:34:06 UT #2 Total Transit Begins
22:19:07 UT #2 Partial Shadow Transit Begins
22:23:21 UT #2 Total Shadow Transit Begins
22:37:37 UT #1 Partial Transit Begins
22:41:17 UT #1 Total Transit Begins
23:09:02 UT #2 Total Transit Ends
23:13:16 UT #2 Partial Transit Ends
23:30:21 UT #1 Partial Shadow Transit Begins
23:34:00 UT #1 Total Shadow Transit Begins
00:50:11 UT #1 Total Transit Ends
00:51:34 UT #2 Total Shadow Transit Ends
00:53:51 UT #1 Partial Transit Ends
00:56:56 UT #2 Partial Shadow Transit Ends
01:39:18 UT #1 Total Shadow Transit Ends
01:44:53 UT #1 Partial Shadow Transit Ends

Curt,

Thanks for the heads up. A double transit doesn't happen very often.

Bill