ALEXIS UV Transient Detections


NOTE: The end of science operations (and therefore GCN Notices) was in December of 1999.

This table contains information about extreme-UV transients detected by the ALEXIS spacecraft. The most recent observation is listed first (reverse time order).

The 9 columns contain: the Date and Time of the end of the data accumulation that went into the map, the Duration of the map accumulation (12, 24, or 48 hours), the RA,Dec (J2000) location of the Transient, the Error in the location (3-sigma radius, statistical+systematic), Alpha is the negative of the log of the probability that it is noise fluctuation (i.e. the larger the number, the smaller the chance that it is a random noise fluctuation), the Telescope that detected the transient.

For more information on ALEXIS and the extreme-UV Transients listed below.

Mail questions/suggestions/complaints to Scott Barthelmy.

ALEXIS extreme-UV Transient Detections
Date Time UT Dur Type RA Dec Error Alpha Tele
99/12/30 11:40:11 48 Initial 193.62 +23.41 0.66 10.80 1B
99/12/30 02:52:36 48 Initial 193.62 +23.41 0.66 8.50 1B
99/11/27 07:40:33 48 Initial 116.48 -29.11 0.66 7.00 2B
99/11/26 18:45:34 12 Initial 156.33 -1.17 0.66 7.50 1A
99/10/11 17:56:48 12 Initial 268.51 +77.43 0.66 7.10 1A
99/09/26 20:28:25 48 Initial 38.19 -25.27 0.66 7.60 2A
99/09/26 07:32:54 48 Initial 38.19 -25.27 0.66 7.50 2A
99/08/11 06:43:06 12 Initial 268.40 -70.53 0.66 7.60 2B
99/07/30 09:24:10 48 Initial 244.49 +5.40 0.66 8.19 1A
99/07/21 12:15:56 12 Initial 12.89 -51.82 0.66 7.70 2A
99/07/19 11:35:15 12 Initial 289.70 -11.26 0.66 7.20 3B
99/07/09 14:57:10 48 Initial 195.19 -13.94 0.66 7.30 1A
99/07/08 15:27:50 12 Initial 217.94 -37.49 0.66 7.60 2A
99/06/22 03:50:12 24 Initial 233.15 -23.38 0.66 7.30 2A
99/06/19 05:22:02 24 Initial 220.63 +36.72 0.66 7.50 1A
99/06/11 06:00:46 24 Initial 186.93 +0.98 0.66 7.20 1A
99/06/10 21:09:26 12 Initial 185.37 -1.84 0.66 7.80 1A
99/04/26 06:52:00 48 Initial 147.55 -1.78 0.66 7.40 1A
99/02/22 05:26:05 24 Initial 65.18 -38.14 0.66 7.40 1A
99/02/17 07:58:32 48 Initial 249.82 +47.42 0.66 8.10 1B
99/02/07 09:37:57 24 Initial 216.15 +8.57 0.66 7.50 1A
98/11/19 17:25:16 48 Initial 7.76 -31.83 0.66 7.00 1A
98/11/12 04:38:08 48 Initial 167.09 +28.01 0.66 7.40 1B
98/11/01 21:25:17 48 Initial 108.04 +53.36 0.66 7.30 2A
98/10/29 08:19:20 12 Initial 103.65 +37.65 0.66 7.80 2B
98/10/16 00:54:36 24 Initial 331.77 +45.24 0.66 7.90 2A
98/10/16 00:54:36 24 Initial 331.77 +45.24 0.66 7.90 2A
98/08/16 21:52:49 12 Initial 205.00 -40.37 0.66 7.50 1A
98/08/13 01:37:40 12 Initial 272.01 +39.88 0.66 7.90 1A
98/08/10 01:25:23 24 Initial 274.79 -24.24 0.66 7.80 3B
98/07/17 06:44:40 48 Final 357.80 -2.97 0.66 7.00 2A
98/07/17 06:44:40 48 Initial 357.80 -2.97 0.66 7.00 2A
98/05/20 19:01:20 48 Final 298.78 -26.78 0.66 7.50 2A
98/05/20 19:01:20 48 Initial 298.78 -26.78 0.66 7.50 2A
98/05/07 22:11:39 48 Final 301.84 +40.20 0.66 7.00 1A
98/05/07 22:11:39 48 Initial 301.84 +40.20 0.66 7.00 1A
98/04/15 02:59:31 12 Final 167.02 +30.88 0.66 7.00 2B
98/04/15 02:59:31 12 Initial 167.02 +30.88 0.66 7.00 2B
98/04/13 04:00:59 48 Final 226.24 +12.37 0.66 7.00 2A
98/04/13 04:00:59 48 Initial 226.24 +12.37 0.66 7.00 2A
98/03/25 21:24:14 24 Final 85.28 -12.97 0.66 7.30 1B
98/03/25 21:24:14 24 Initial 85.28 -12.97 0.66 7.30 1B
98/03/18 08:36:41 48 Final 118.79 +22.18 0.66 7.40 2A
98/03/18 08:36:41 48 Initial 118.79 +22.18 0.66 7.40 2A
98/03/15 10:08:27 24 Final 74.26 +44.58 0.66 7.70 1B
98/03/15 10:08:27 24 Initial 74.26 +44.58 0.66 7.70 1B
98/03/09 00:52:34 12 Final 192.77 +69.72 0.66 7.20 1B
98/03/09 00:52:34 12 Initial 192.77 +69.72 0.66 7.20 1B
98/02/10 16:34:06 24 Final 73.72 -6.51 0.66 7.00 2A
98/02/10 16:34:06 24 Initial 73.72 -6.51 0.66 7.00 2A
98/02/08 08:48:10 24 Initial 226.35 -41.51 0.66 7.90 1B
98/01/28 10:55:22 48 Final 42.30 +20.01 0.66 7.10 1B
98/01/28 10:55:22 48 Initial 42.30 +20.01 0.66 7.10 1B
98/01/27 09:39:26 24 Final 42.30 +20.01 0.66 7.00 1B
98/01/27 09:39:26 24 Initial 42.30 +20.01 0.66 7.00 1B
98/01/24 11:11:56 12 Initial 155.99 +18.26 0.66 7.40 3B
98/01/23 11:43:34 24 Final 219.54 -10.32 0.66 7.40 1B
98/01/23 11:43:34 24 Initial 219.54 -10.32 0.66 7.40 1B
98/01/20 11:29:37 24 Final 84.23 -40.78 0.66 7.40 1A
98/01/20 11:29:37 24 Initial 84.23 -40.78 0.66 7.40 1A
97/12/26 02:40:07 24 Final 27.85 +30.70 0.66 7.00 1A
97/12/26 02:40:07 24 Initial 27.85 +30.70 0.66 7.00 1A
97/12/20 18:39:03 24 Final 78.07 +47.70 0.66 7.30 3B
97/12/20 18:39:03 24 Initial 78.07 +47.70 0.66 7.30 3B
97/12/12 21:01:57 24 Final 24.45 -37.67 0.66 7.30 1A
97/12/12 21:01:57 24 Initial 24.45 -37.67 0.66 7.30 1A
97/12/09 06:08:26 48 Final 163.04 -15.57 0.66 7.30 1A
97/12/09 06:08:26 48 Initial 163.04 -15.57 0.66 7.30 1A
97/12/08 21:18:22 48 Initial 163.04 -15.57 0.66 7.00 1A
97/12/07 21:50:01 24 Initial 140.44 -7.27 0.66 7.10 2A
97/12/07 21:50:01 24 Final 140.44 -7.27 0.66 7.10 2A
97/12/04 21:36:02 12 Initial 118.71 +0.31 0.66 7.10 3A
97/12/03 22:07:03 24 Final 113.54 +31.20 0.66 7.40 3A
97/12/03 22:07:03 24 Initial 113.54 +31.20 0.66 7.40 3A
97/11/26 00:29:34 24 Final 106.79 -62.36 0.66 7.10 1A
97/11/26 00:29:34 24 Initial 106.79 -62.36 0.66 7.10 1A
97/11/23 00:15:18 48 Final 119.63 +14.83 0.66 7.10 2A
97/11/23 00:15:18 48 Initial 119.63 +14.83 0.66 7.10 2A
97/11/22 00:46:23 48 Final 285.24 +71.38 0.66 7.50 1A
97/11/22 00:46:23 48 Initial 285.24 +71.38 0.66 7.50 1A
97/11/16 10:56:15 24 Final 292.46 +39.83 0.66 7.50 1B
97/11/16 10:56:15 24 Initial 292.46 +39.83 0.66 7.50 1B
97/11/11 13:29:37 48 Final 325.09 -45.44 0.66 7.40 1A
97/11/11 13:29:37 48 Initial 325.09 -45.44 0.66 7.40 1A
97/11/11 02:54:28 48 Final 325.09 -45.44 0.66 8.10 1A
97/11/11 02:54:28 48 Initial 325.09 -45.44 0.66 8.10 1A
97/11/10 14:00:46 24 Final 325.09 -45.44 0.66 9.40 1A
97/11/10 14:00:46 24 Initial 325.09 -45.44 0.66 9.40 1A
97/11/10 03:25:35 12 Initial 325.09 -45.44 0.66 8.00 1A
97/11/10 03:25:35 12 Final 325.09 -45.44 0.66 8.00 1A
97/11/07 13:47:23 24 Final 308.76 -9.72 0.66 7.00 1A
97/11/07 13:47:23 24 Initial 308.76 -9.72 0.66 7.00 1A
97/11/04 15:20:27 12 Final 10.87 -13.13 0.66 7.10 3B
97/11/04 15:20:27 12 Initial 10.87 -13.13 0.66 7.10 3B
97/11/01 15:06:58 48 Final 25.00 -40.35 0.66 7.30 2B
97/11/01 15:06:58 48 Initial 25.00 -40.35 0.66 7.30 2B
97/11/01 06:20:50 48 Final 25.25 -40.28 0.66 7.30 2B
97/11/01 06:20:50 48 Initial 25.25 -40.28 0.66 7.30 2B
97/10/27 07:08:01 12 Final 2.32 -29.14 0.66 8.40 2A
97/10/27 07:08:01 12 Initial 2.32 -29.14 0.66 8.40 2A
97/10/24 06:53:23 48 Final 334.40 -68.78 0.66 7.30 1B
97/10/24 06:53:23 48 Initial 334.40 -68.78 0.66 7.30 1B
97/10/18 18:47:52 48 Initial 42.80 +36.77 0.66 9.10 3A
97/10/18 08:12:56 48 Initial 42.80 +36.77 0.66 8.40 3B
97/10/14 19:05:42 48 Initial 28.69 +2.44 0.66 7.00 3B
97/10/08 09:50:57 24 Initial 356.57 +36.23 0.66 7.10 3B
97/09/27 13:46:22 12 Initial 312.69 +14.84 0.66 8.30 3A
97/08/24 06:00:30 48 Final 332.85 +45.50 0.66 7.60 2B
97/08/24 06:00:30 48 Initial 332.85 +45.50 0.66 7.60 2B
97/08/23 21:12:04 48 Final 332.85 +45.50 0.66 7.10 2B
97/08/23 21:12:04 48 Initial 332.85 +45.50 0.66 7.10 2B
97/08/23 06:30:59 24 Final 227.00 +1.10 0.66 7.60 1A
97/08/23 06:30:59 24 Initial 227.00 +1.10 0.66 7.60 1A
97/08/22 19:55:36 48 Final 43.02 +36.68 0.66 6.20 1B
97/08/22 07:01:59 24 Final 284.78 -1.62 0.66 7.80 3B
97/08/22 07:01:59 24 Initial 284.78 -1.62 0.66 7.80 3B
97/08/21 20:26:14 12 Final 284.78 -1.62 0.66 7.50 3B
97/08/21 20:26:14 12 Initial 284.78 -1.62 0.66 7.50 3B
97/08/12 23:19:34 24 Final 4.26 -9.00 0.66 7.20 2A
97/08/12 23:19:34 24 Initial 4.26 -9.00 0.66 7.20 2A
97/08/09 10:12:16 48 Final 43.21 +36.91 0.66 8.50 1A
97/08/09 10:12:16 48 Initial 43.21 +36.91 0.66 8.50 1A
97/08/08 23:36:13 48 Final 198.53 -36.28 0.66 7.20 1A
97/08/08 23:36:13 48 Initial 198.53 -36.28 0.66 7.20 1A
97/08/04 00:24:35 12 Initial 134.98 -79.02 0.66 7.30 1A
97/08/04 00:24:35 12 Final 134.98 -79.02 0.66 7.30 1A
97/07/14 14:46:17 48 Final 310.55 -42.39 0.66 7.40 3B
97/07/14 14:46:17 48 Initial 310.55 -42.39 0.66 7.40 3B
97/07/14 14:46:17 48 Final 310.55 -42.39 0.66 7.40 3B
97/07/09 06:48:14 48 Final 181.01 -7.17 0.66 7.30 1A
97/07/09 06:48:14 48 Initial 181.01 -7.17 0.66 7.30 1A
97/07/06 17:07:11 12 Final 201.52 +68.38 0.66 6.10 1B
97/07/05 07:08:36 24 Final 116.96 -54.69 0.66 7.10 1A
97/07/05 07:08:36 24 Initial 116.96 -54.69 0.66 7.10 1A
97/06/27 18:13:46 48 Final 245.35 -28.29 0.66 7.20 3B
97/06/27 18:13:46 48 Initial 245.35 -28.29 0.66 7.20 3B
97/06/25 19:15:08 48 Final 54.37 -47.87 0.66 7.00 1B
97/06/25 19:15:08 48 Initial 54.37 -47.87 0.66 7.00 1B
97/06/21 10:46:05 24 Initial 249.21 -22.15 0.66 7.00 3B
97/06/20 20:04:00 24 Final 349.70 +33.37 0.66 7.10 1A
97/06/20 20:04:00 24 Initial 349.70 +33.37 0.66 7.10 1A
97/06/17 11:02:07 48 Final 184.17 +16.53 0.66 7.30 1A
97/06/17 11:02:07 48 Initial 184.17 +16.53 0.66 7.30 1A
97/06/16 20:22:07 24 Final 171.98 +3.95 0.66 7.30 1B
97/06/16 20:22:07 24 Initial 171.98 +3.95 0.66 7.30 1B
97/06/03 14:42:38 48 Final 304.30 -9.83 0.66 7.60 2A
97/06/03 14:42:38 48 Initial 304.30 -9.83 0.66 7.60 2A
97/06/02 15:14:55 12 Final 312.74 -10.81 0.66 7.80 2A
97/06/02 15:14:55 12 Initial 312.74 -10.81 0.66 7.80 2A
97/05/30 14:59:11 12 Final 252.54 -8.80 0.66 7.20 3B
97/05/30 14:59:11 12 Initial 252.54 -8.80 0.66 7.20 3B
97/05/30 00:20:22 48 Final 256.05 +18.21 0.66 7.60 2A
97/05/30 00:20:22 48 Initial 256.05 +18.21 0.66 7.60 2A
97/05/22 02:41:03 24 Final 257.08 +41.72 0.66 7.70 1A
97/05/22 02:41:03 24 Initial 257.08 +41.72 0.66 7.70 1A
97/05/19 02:28:47 24 Final 204.16 +17.87 0.66 7.20 2B
97/05/19 02:28:47 24 Initial 204.16 +17.87 0.66 7.20 2B
97/05/13 18:26:46 24 Final 208.03 -41.31 0.66 7.70 3B
97/05/13 18:26:46 24 Initial 208.03 -41.31 0.66 7.70 3B
97/05/12 18:57:44 48 Final 259.56 -37.26 0.66 6.20 3A
97/05/12 04:18:35 12 Final 283.69 +21.54 0.66 7.20 1A
97/05/12 04:18:35 12 Initial 283.69 +21.54 0.66 7.20 1A


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This file is continuously modified by the GCN programs; see the timestamp of the most recent trigger entry in the table.

This file was last modified by a human on 22-Nov-97.