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
811580444 2026-09-20 07:00:05.774955 CHIME F1178112591 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811575255 2026-09-20 05:33:37.064191 CHIME F1178103314 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811570618 2026-09-20 04:16:19.967691 CHIME F1178093237 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811555602 2026-09-20 00:06:04.049000 EP EP WXT Trigger #01709318515 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811554531 2026-09-19 23:48:12.800000 Fermi/GBM Fermi 811554497 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811547698 2026-09-19 21:54:20.045536 CHIME F1178044631 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811528076 2026-09-19 16:27:18.001880 CHIME F1177971935 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811521791 2026-09-19 14:42:33.379013 CHIME F1177964611 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811503016 2026-09-19 09:29:38.249000 EP EP WXT Trigger #01709318491 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811495563 2026-09-19 07:25:25.094427 CHIME F1177946462 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811494512 2026-09-19 07:07:54.509959 CHIME F1177940915 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811493573 2026-09-19 06:52:15 IceCube Nu 38400235 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811472197 2026-09-19 00:55:58.636269 CHIME F1177890141 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811450935 2026-09-18 19:01:36.637283 CHIME F1177850521 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811441026 2026-09-18 16:16:28.431093 CHIME F1177828601 F1177828602 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811435784 2026-09-18 14:49:06.499000 EP EP WXT Trigger #01709318279 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811396074 2026-09-18 03:47:15.620000 SVOM ECLAIRs sb26091801 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811382082 2026-09-17 23:54:04.420000 Fermi/GBM Fermi 811382049 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811376951 2026-09-17 22:28:33.160539 CHIME F1177740138 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811372440 2026-09-17 21:13:22.375302 CHIME F1177736985 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811365922 2026-09-17 19:24:43.797363 CHIME F1177667670 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811335360 2026-09-17 10:55:21.590000 CALET/GBM CALET 1473677705 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811333674 2026-09-17 10:27:16.312693 CHIME FRB20180916B Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811332549 2026-09-17 10:08:31.358419 CHIME 231298202 F231298202 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811330704 2026-09-17 09:37:45.999000 EP EP WXT Trigger #01709318047 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811309970 2026-09-17 03:52:11.540000 SVOM ECLAIRs sb26091701 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811304686 2026-09-17 02:24:08.400000 Fermi/GBM Fermi 811304653 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811283845 2026-09-16 20:36:46.999000 EP EP WXT Trigger #01709317235 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811275823 2026-09-16 18:23:04.964270 CHIME F1177524555 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811272869 2026-09-16 17:33:51 IceCube Nu 29436198 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811264302 2026-09-16 15:11:04.340000 Fermi/GBM Fermi 811264269 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811253394 2026-09-16 12:09:16.090000 CALET/GBM CALET 1473595741 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811251884 2026-09-16 11:44:05.810000 CALET/GBM CALET 1473594231 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
811127551 2026-09-15 01:11:53.325000 SVOM ECLAIRs sb26091501 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810775043 2026-09-10 23:16:44.570000 Fermi/GBM Fermi 810775009 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810761968 2026-09-10 19:38:49.970352 CHIME F1176936416 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810717173 2026-09-10 07:12:14.887554 CHIME F1176841778 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810696267 2026-09-10 01:23:49.090000 Fermi/GBM Fermi 810696234 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810672752 2026-09-09 18:51:53.965540 CHIME F1176783814 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810645504 2026-09-09 11:17:45.868000 SVOM ECLAIRs sb26090910 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810636643 2026-09-09 08:50:04.980000 CALET/GBM CALET 1472979004 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810626762 2026-09-09 06:05:24.483941 CHIME F1176730230 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810621783 2026-09-09 04:42:25.050527 CHIME 1155103352 F1155103352 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810604983 2026-09-09 00:02:24.931230 CHIME F1176698114 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810595383 2026-09-08 21:22:24.700925 CHIME F1176660286 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810593622 2026-09-08 20:53:03.910000 CALET/GBM CALET 1472935984 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810570055 2026-09-08 14:20:17.299000 EP EP WXT Trigger #01709306297 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810554860 2026-09-08 10:07:02.530000 Fermi/GBM Fermi 810554827 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810554107 2026-09-08 09:54:28.910000 CALET/GBM CALET 1472896469 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
810549691 2026-09-08 08:40:53.020000 Fermi/GBM Fermi 810549658 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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