Great Red Spot Transit Table 2011-2012

Transit times for Jupiter's Great Red Spot (GRS) from September 2011 through March 2012 (in Universal Time) are listed below.

These predictions assume the Red Spot is at Jovian System II longitude 173°, our best guess for late 2011 based on historical trends noted by JUPOS. If the GRS has moved elsewhere, it will transit 1 2/3 minutes late for every 1° of longitude greater than 173° or 1 2/3 minutes early for every 1° less than 173°.

Features on Jupiter appear closer to the central meridian than to the limb — and thus are well placed for viewing — for 50 minutes before and after their transit times.

Red Spot Transits in 2011

September 1: 6:17, 16:13;
2: 2:08, 12:04, 21:59;
3: 7:55, 17:51;
4: 3:46, 13:42, 23:38;
5: 9:33, 19:29;
6: 5:24, 15:20;
7: 1:16, 11:11, 21:07;
8: 7:03, 16:58;
9: 2:54, 12:49, 22:45;
10: 8:41, 18:36;
11: 4:32, 14:27;
12: 0:23, 10:19, 20:14;
13: 6:10, 16:05;
14: 2:01, 11:57, 21:52;
15: 7:48, 17:43;
16: 3:39, 13:35, 23:30;
17: 9:26, 19:21;
18: 5:17, 15:13;
19: 1:08, 11:04, 20:59;
20: 6:55, 16:51;
21: 2:46, 12:42, 22:37;
22: 8:33, 18:29;
23: 4:24, 14:20;
24: 0:15, 10:11, 20:07;
25: 6:02, 15:58;
26: 1:53, 11:49, 21:44;
27: 7:40, 17:36;
28: 3:31, 13:27, 23:22;
29: 9:18, 19:14;
30: 5:09, 15:05

October 1: 1:00, 10:56, 20:51;
2: 6:47, 16:43;
3: 2:38, 12:34, 22:29;
4: 8:25, 18:21;
5: 4:16, 14:12;
6: 0:07, 10:03, 19:58;
7: 5:54, 15:50;
8: 1:45, 11:41, 21:36;
9: 7:32, 17:28;
10: 3:23, 13:19, 23:14;
11: 9:10, 19:05;
12: 5:01, 14:57;
13: 0:52, 10:48, 20:43;
14: 6:39, 16:34;
15: 2:30, 12:26, 22:21;
16: 8:17, 18:12;
17: 4:08, 14:03, 23:59;
18: 9:55, 19:50;
19: 5:46, 15:41;
20: 1:37, 11:33, 21:28;
21: 7:24, 17:19;
22: 3:15, 13:10, 23:06;
23: 9:02, 18:57;
24: 4:53, 14:48;
25: 0:44, 10:40, 20:35;
26: 6:31, 16:26;
27: 2:22, 12:17, 22:13;
28: 8:09, 18:04;
29: 4:00, 13:55, 23:51;
30: 9:47, 19:42;
31: 5:38, 15:33

November 1: 1:29, 11:24, 21:20;
2: 7:16, 17:11;
3: 3:07, 13:02, 22:58;
4: 8:54, 18:49;
5: 4:45, 14:40;
6: 0:36, 10:32, 20:27;
7: 6:23, 16:18;
8: 2:14, 12:10, 22:05;
9: 8:01, 17:56;
10: 3:52, 13:48, 23:43;
11: 9:39, 19:34;
12: 5:30, 15:26;
13: 1:21, 11:17, 21:12;
14: 7:08, 17:04;
15: 2:59, 12:55, 22:51;
16: 8:46, 18:42;
17: 4:37, 14:33;
18: 0:29, 10:24, 20:20;
19: 6:15, 16:11;
20: 2:07, 12:02, 21:58;
21: 7:54, 17:49;
22: 3:45, 13:41, 23:36;
23: 9:32, 19:27;
24: 5:23, 15:19;
25: 1:14, 11:10, 21:06;
26: 7:01, 16:57;
27: 2:53, 12:48, 22:44;
28: 8:39, 18:35;
29: 4:31, 14:26;
30: 0:22, 10:18, 20:13

December 1: 6:09, 16:05;
2: 2:00, 11:56, 21:52;
3: 7:47, 17:43;
4: 3:39, 13:34, 23:30;
5: 9:26, 19:21;
6: 5:17, 15:13;
7: 1:08, 11:04, 21:00;
8: 6:55, 16:51;
9: 2:47, 12:42, 22:38;
10: 8:34, 18:29;
11: 4:25, 14:21;
12: 0:16, 10:12, 20:08;
13: 6:04, 15:59;
14: 1:55, 11:51, 21:46;
15: 7:42, 17:38;
16: 3:33, 13:29, 23:25;
17: 9:20, 19:16;
18: 5:12, 15:08;
19: 1:03, 10:59, 20:55;
20: 6:50, 16:46;
21: 2:42, 12:38, 22:33;
22: 8:29, 18:25;
23: 4:20, 14:16;
24: 0:12, 10:08, 20:03;
25: 5:59, 15:55;
26: 1:51, 11:46, 21:42;
27: 7:38, 17:33;
28: 3:29, 13:25, 23:21;
29: 9:16, 19:12;
30: 5:08, 15:04;
31: 0:59, 10:55, 20:51

January 1: 6:47, 16:42;
2: 2:38, 12:34, 22:30;
3: 8:25, 18:21;
4: 4:17, 14:13;
5: 0:08, 10:04, 20:00;
6: 5:56, 15:51;
7: 1:47, 11:43, 21:39;
8: 7:34, 17:30;
9: 3:26, 13:22, 23:17;
10: 9:13, 19:09;
11: 5:05, 15:00;
12: 0:56, 10:52, 20:48;
13: 6:44, 16:39;
14: 2:35, 12:31, 22:27;
15: 8:22, 18:18;
16: 4:14, 14:10;
17: 0:06, 10:01, 19:57;
18: 5:53, 15:49;
19: 1:45, 11:40, 21:36;
20: 7:32, 17:28;
21: 3:23, 13:19, 23:15;
22: 9:11, 19:07;
23: 5:02, 14:58;
24: 0:54, 10:50, 20:46;
25: 6:41, 16:37;
26: 2:33, 12:29, 22:25;
27: 8:20, 18:16;
28: 4:12, 14:08;
29: 0:04, 9:59, 19:55;
30: 5:51, 15:47;
31: 1:43, 11:39, 21:34

February 1: 7:30, 17:26;
2: 3:22, 13:18, 23:13;
3: 9:09, 19:05;
4: 5:01, 14:57;
5: 0:52, 10:48, 20:44;
6: 6:40, 16:36;
7: 2:32, 12:27, 22:23;
8: 8:19, 18:15;
9: 4:11, 14:07;
10: 0:02, 9:58, 19:54;
11: 5:50, 15:46;
12: 1:41, 11:37, 21:33;
13: 7:29, 17:25;
14: 3:21, 13:16, 23:12;
15: 9:08, 19:04;
16: 5:00, 14:56;
17: 0:51, 10:47, 20:43;
18: 6:39, 16:35;
19: 2:31, 12:26, 22:22;
20: 8:18, 18:14;
21: 4:10, 14:06;
22: 0:02, 9:57, 19:53;
23: 5:49, 15:45;
24: 1:41, 11:37, 21:32;
25: 7:28, 17:24;
26: 3:20, 13:16, 23:12;
27: 9:07, 19:03;
28: 4:59, 14:55;
29: 0:51, 10:47, 20:43

March 1: 6:38, 16:34;
2: 2:30, 12:26, 22:22;
3: 8:18, 18:13;
4: 4:09, 14:05;
5: 0:01, 9:57, 19:53;
6: 5:49, 15:44;
7: 1:40, 11:36, 21:32;
8: 7:28, 17:24;
9: 3:20, 13:15, 23:11;
10: 9:07, 19:03;
11: 4:59, 14:55;
12: 0:51, 10:46, 20:42;
13: 6:38, 16:34;
14: 2:30, 12:26, 22:22;
15: 8:17, 18:13;
16: 4:09, 14:05;
17: 0:01, 9:57, 19:52;
18: 5:48, 15:44;
19: 1:40, 11:36, 21:32;
20: 7:28, 17:24;
21: 3:19, 13:15, 23:11;
22: 9:07, 19:03;
23: 4:59, 14:55;
24: 0:50, 10:46, 20:42;
25: 6:38, 16:34;
26: 2:30, 12:25, 22:21;
27: 8:17, 18:13;
28: 4:09, 14:05;
29: 0:01, 9:57, 19:52;
30: 5:48, 15:44;
31: 1:40, 11:36, 21:32