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
794733701 2026-03-09 07:21:04.559138 CHIME F1154551346 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794730647 2026-03-09 06:30:09.704899 CHIME F1154551343 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794708115 2026-03-09 00:14:38.511423 CHIME F1154532887 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794704147 2026-03-08 23:08:29.709862 CHIME F1154529647 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794693189 2026-03-08 20:05:52.450000 Fermi/GBM Fermi 794693157 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794683791 2026-03-08 17:29:13.714038 CHIME F1154499732 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794652213 2026-03-08 08:42:55.790000 CALET/GBM CALET 1456994566 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794620274 2026-03-07 23:50:37.147962 CHIME F1154425252 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794590992 2026-03-07 15:42:34.670000 CALET/GBM CALET 1456933347 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794583943 2026-03-07 13:45:06.207000 SVOM ECLAIRs sb26030704 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794575716 2026-03-07 11:27:59.320000 Fermi/GBM Fermi 794575684 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794575713 2026-03-07 11:27:56.480000 CALET/GBM CALET 1456918069 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794569136 2026-03-07 09:38:19.530112 CHIME F1154366591 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794559920 2026-03-07 07:04:43.155600 CHIME F1154361137 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794552717 2026-03-07 05:04:40.057715 CHIME F1154355329 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794524189 2026-03-06 21:09:11.717110 CHIME F1154320981 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794474744 2026-03-06 07:25:07.130000 CALET/GBM CALET 1456817102 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794453397 2026-03-06 01:29:20.649000 EP EP WXT Trigger #01709258759 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794427132 2026-03-05 18:11:35.459510 CHIME F1154181878 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794417323 2026-03-05 15:28:05.937544 CHIME F1154143932 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794417321 2026-03-05 15:28:04.448378 CHIME F1154144848 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794417320 2026-03-05 15:28:03.462587 CHIME F1154143974 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794417319 2026-03-05 15:28:02.497786 CHIME F1154143742 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794379786 2026-03-05 05:02:28.915584 CHIME F1154119999 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794371335 2026-03-05 02:41:38.190000 Fermi/GBM Fermi 794371303 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794365611 2026-03-05 01:06:14.352138 CHIME F1154096930 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794358626 2026-03-04 23:09:49.023999 CHIME FRB20180916B Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794346096 2026-03-04 19:40:59.420000 Fermi/GBM Fermi 794346064 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794340749 2026-03-04 18:11:52.190000 CALET/GBM CALET 1456683110 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794335345 2026-03-04 16:41:48.400000 CALET/GBM CALET 1456677706 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794331616 2026-03-04 15:39:39.310000 Fermi/GBM Fermi 794331584 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794325827 2026-03-04 14:03:09.970000 Fermi/GBM Fermi 794325794 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794317528 2026-03-04 11:44:51.140000 CALET/GBM CALET 1456659889 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794310003 2026-03-04 09:39:26.573000 SVOM ECLAIRs sb26030408 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794283491 2026-03-04 02:17:34.260000 Fermi/GBM Fermi 794283459 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794275756 2026-03-04 00:08:38.792002 CHIME F1153966438 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794257420 2026-03-03 19:03:02.678341 CHIME F1153938236 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794248771 2026-03-03 16:38:53.850000 Fermi/GBM Fermi 794248738 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794237097 2026-03-03 13:24:20.460000 Fermi/GBM Fermi 794237065 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794224416 2026-03-03 09:52:59.543187 CHIME F1153887334 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794223870 2026-03-03 09:43:52.836762 CHIME F1153887141 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794210524 2026-03-03 06:01:27.324000 SVOM ECLAIRs sb26030303 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794190694 2026-03-03 00:30:57.234850 CHIME F1153855481 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794188416 2026-03-02 23:52:58.999000 EP EP WXT Trigger #01709258736 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794186568 2026-03-02 23:22:11.195611 CHIME F1153847509 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794181377 2026-03-02 21:55:40.324938 CHIME F1153831493 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794167875 2026-03-02 18:10:38.080000 CALET/GBM CALET 1456510239 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794154017 2026-03-02 14:19:40.450000 Fermi/GBM Fermi 794153985 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794110966 2026-03-02 02:22:08.820000 Fermi/GBM Fermi 794110933 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
794044136 2026-03-01 07:48:19.350000 Fermi/GBM Fermi 794044104 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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