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
791339907 2026-01-29 00:37:50.100000 CALET/GBM CALET 1453682226 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791336436 2026-01-28 23:39:59.149000 EP EP WXT Trigger #01709253190 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791329044 2026-01-28 21:36:47.340000 Fermi/GBM Fermi 791329012 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791317309 2026-01-28 18:21:12.520000 CALET/GBM CALET 1453659629 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791302301 2026-01-28 14:11:04.140000 Fermi/GBM Fermi 791302269 Waiting for: ['n_OUTFOV']
791263094 2026-01-28 03:17:37.749000 EP EP WXT Trigger #01709253145 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791236989 2026-01-27 20:02:32.570000 Fermi/GBM Fermi 791236957 Complete
791229104 2026-01-27 17:51:07.740000 Fermi/GBM Fermi 791229072 Waiting for: ['LIGHTCURVE']
791214345 2026-01-27 13:45:07.944658 CHIME F1150320313 Complete
791160295 2026-01-26 22:44:18.250929 CHIME F1150234477 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791159223 2026-01-26 22:26:26.470000 Fermi/GBM Fermi 791159191 Waiting for: ['n_INFOV']
791143619 2026-01-26 18:06:22.452893 CHIME F1150194512 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791127291 2026-01-26 13:34:14.800000 CALET/GBM CALET 1453469616 Complete
791109296 2026-01-26 08:34:19.050698 CHIME F1150165472 Complete
791094337 2026-01-26 04:25:00.716000 EP EP WXT Trigger #11900571010 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791074248 2026-01-25 22:50:10.920000 Fermi/GBM Fermi 791074215 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791068388 2026-01-25 21:12:31.675915 CHIME F1150121193 Complete
791049304 2026-01-25 15:54:27.749203 CHIME F1150082057 Complete
791029582 2026-01-25 10:25:45.230000 Fermi/GBM Fermi 791029550 Waiting for: ['n_OUTFOV', 'n_INFOV']
791028616 2026-01-25 10:09:39 IceCube Nu 63695019 Complete
791019455 2026-01-25 07:36:58.080000 Fermi/GBM Fermi 791019423 Complete
791018560 2026-01-25 07:22:03.658725 CHIME F1150060594 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
791006069 2026-01-25 03:53:52.050000 Fermi/GBM Fermi 791006037 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790989323 2026-01-24 23:14:46.890000 Fermi/GBM Fermi 790989291 Complete
790949383 2026-01-24 12:09:06.483556 CHIME 235982106 Complete
790924837 2026-01-24 05:20:00.417679 CHIME F1149982486 Complete
790904367 2026-01-23 23:38:50.870000 Fermi/GBM Fermi 790904335 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790877923 2026-01-23 16:18:06.836884 CHIME F1149894487 Complete
790877570 2026-01-23 16:12:13.170000 CALET/GBM CALET 1453219899 Complete
790869434 2026-01-23 13:56:37.750000 Fermi/GBM Fermi 790869402 Complete
790860599 2026-01-23 11:29:22.150000 CALET/GBM CALET 1453202929 Complete
790848815 2026-01-23 08:12:58.076473 CHIME F1149877420 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790825320 2026-01-23 01:41:23.370000 Fermi/GBM Fermi 790825288 Complete
790822546 2026-01-23 00:55:09.016532 CHIME 318361859 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790819399 2026-01-23 00:02:42.190000 Fermi/GBM Fermi 790819367 Complete
790793398 2026-01-22 16:49:21.380000 Fermi/GBM Fermi 790793366 Complete
790782666 2026-01-22 13:50:29.260000 Fermi/GBM Fermi 790782634 Complete
790777829 2026-01-22 12:29:52.810000 Fermi/GBM Fermi 790777797 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790776963 2026-01-22 12:15:26.560000 CALET/GBM CALET 1453119295 Waiting for: ['n_INFOV']
790771360 2026-01-22 10:42:03.230000 CALET/GBM CALET 1453113692 Complete
790767260 2026-01-22 09:33:43.420000 Fermi/GBM Fermi 790767228 Complete
790749566 2026-01-22 04:38:49.573360 CHIME F1149692689 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790740492 2026-01-22 02:07:35.260000 Fermi/GBM Fermi 790740460 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790734461 2026-01-22 00:27:04.350000 Fermi/GBM Fermi 790734429 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790732851 2026-01-22 00:00:14.399000 EP EP WXT Trigger #01709251871 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790699659 2026-01-21 14:47:02.675069 CHIME FRB20201114A Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790697485 2026-01-21 14:10:48.400000 Fermi/GBM Fermi 790697453 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790691632 2026-01-21 12:33:15.600000 Fermi/GBM Fermi 790691600 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790689600 2026-01-21 11:59:23.540012 CHIME F1149587258 Complete
790676676 2026-01-21 08:23:59.470000 CALET/GBM CALET 1453019010 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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