The Echo-Location: aka the BAT Targeted Search Portal

This web application hosts and manages live, autonomous, analyses of BAT data in the form of targeted searches around times provided by other instruments, with the goal of (echo)locating an associated gamma-ray transient.
All information on this site is preliminary and is provided to the broader community on a best effort basis to aid time-critical decision making.
The analyses hosted on this site rely on the GUANO autonomous spacecraft commanding pipeline (Tohuvavohu, Kennea, et al. 2020) and the NITRATES likelihood analysis (DeLaunay and Tohuvavohu, 2022). Please cite these papers if you use information hosted here.
Contact Aaron Tohuvavohu with questions or requests.

It is strongly recommended that you read the documentation before using any information provided here.


Click on a Trigger to see its targeted search report.

Trigger ID Attention DateTime Triggering Instrument Event Name Analysis Status
786156224 2025-11-30 00:43:07.430000 Fermi/GBM Fermi 786156192 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786145298 2025-11-29 21:41:02.140000 Fermi/GBM Fermi 786145267 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786139920 2025-11-29 20:11:23.260000 Fermi/GBM Fermi 786139888 Complete
786125572 2025-11-29 16:12:15.378880 CHIME F1141526689 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786125075 2025-11-29 16:03:59.060000 Fermi/GBM Fermi 786125044 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786124429 2025-11-29 15:53:12.350000 Fermi/GBM Fermi 786124397 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786110758 2025-11-29 12:05:21.670000 Fermi/GBM Fermi 786110726 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786107272 2025-11-29 11:07:16.099000 EP EP WXT Trigger #01709248941 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786106208 2025-11-29 10:49:32.010557 CHIME F1141515835 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786091542 2025-11-29 06:45:05.391455 CHIME F1141493546 Complete
786087859 2025-11-29 05:43:42.920000 Fermi/GBM Fermi 786087827 Waiting for: ['n_INFOV']
786082707 2025-11-29 04:17:50.950000 Fermi/GBM Fermi 786082675 Complete
786078900 2025-11-29 03:14:23.449000 EP EP WXT Trigger #01709248891 Complete
786076321 2025-11-29 02:31:24.697000 SVOM ECLAIRs sb25112901 Complete
786073464 2025-11-29 01:43:47.830000 Fermi/GBM Fermi 786073432 Complete
786067353 2025-11-29 00:01:57.050000 CALET/GBM CALET 1448409165 Complete
786061272 2025-11-28 22:20:35.480000 CALET/GBM CALET 1448403083 Complete
786061065 2025-11-28 22:17:09.100000 Fermi/GBM Fermi 786061034 Complete
786039578 2025-11-28 16:19:02.200000 Fermi/GBM Fermi 786039547 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
786007182 2025-11-28 07:19:05.770000 Fermi/GBM Fermi 786007150 Complete
785996578 2025-11-28 04:22:21.610000 Fermi/GBM Fermi 785996546 Complete
785987351 2025-11-28 01:48:35.150000 Fermi/GBM Fermi 785987320 Complete
785986511 2025-11-28 01:34:34.830000 Fermi/GBM Fermi 785986479 Complete
785961657 2025-11-27 18:40:20.810000 CALET/GBM CALET 1448303471 Complete
785930571 2025-11-27 10:02:14.246860 CHIME F1141280817 Complete
785928906 2025-11-27 09:34:29.530000 CALET/GBM CALET 1448270720 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785915018 2025-11-27 05:43:02.092612 CHIME FRB20180916B Complete
785906299 2025-11-27 03:17:42.770000 Fermi/GBM Fermi 785906267 Complete
785865459 2025-11-26 15:57:02.800000 Fermi/GBM Fermi 785865427 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785856156 2025-11-26 13:21:59.627902 CHIME F1141154352 Complete
785835290 2025-11-26 07:34:13.693281 CHIME F1141141610 Complete
785831224 2025-11-26 06:26:28.220000 Fermi/GBM Fermi 785831193 Complete
785808507 2025-11-26 00:07:51.088872 CHIME F1141086519 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785795062 2025-11-25 20:23:45.880000 Fermi/GBM Fermi 785795030 Complete
785794481 2025-11-25 20:14:04.960000 CALET/GBM CALET 1448136299 Complete
785752247 2025-11-25 08:30:10.960000 Fermi/GBM Fermi 785752215 Complete
785727058 2025-11-25 01:30:21.880000 Fermi/GBM Fermi 785727026 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785725215 2025-11-25 00:59:38.780000 Fermi/GBM Fermi 785725183 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785705214 2025-11-24 19:26:17.750000 CALET/GBM CALET 1448047033 Complete
785681920 2025-11-24 12:58:03.470000 Fermi/GBM Fermi 785681888 Complete
785675441 2025-11-24 11:10:05.099000 EP EP WXT Trigger #01709248862 Complete
785670837 2025-11-24 09:53:21.215047 CHIME F1140845269 Complete
785643615 2025-11-24 02:19:38.556523 CHIME F1140796247 Complete
785629811 2025-11-23 22:29:34.568554 CHIME F1140762535 Complete
785626884 2025-11-23 21:40:47.401239 CHIME F1140760092 Complete
785581275 2025-11-23 09:00:39.199000 EP EP WXT Trigger #01709248783 Complete
785547903 2025-11-22 23:44:26.900000 Fermi/GBM Fermi 785547871 Complete
785512468 2025-11-22 13:53:51.299000 EP EP WXT Trigger #01709248658 Complete
785512358 2025-11-22 13:52:01.515000 SVOM ECLAIRs sb25112204 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785511691 2025-11-22 13:40:55.180000 Fermi/GBM Fermi 785511660 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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