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
809757625 2026-08-30 04:39:46.910000 Fermi/GBM Fermi 809757591 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809755541 2026-08-30 04:05:02.779296 CHIME F1175398455 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809747871 2026-08-30 01:57:12.827035 CHIME F1175387082 F1175387085 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809734549 2026-08-29 22:15:10.815602 CHIME F1175376814 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809727712 2026-08-29 20:21:13.980000 Fermi/GBM Fermi 809727678 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809707749 2026-08-29 14:48:31.580000 Fermi/GBM Fermi 809707716 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809687906 2026-08-29 09:17:47.981464 CHIME F1175321548 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809678581 2026-08-29 06:42:23.210000 Fermi/GBM Fermi 809678548 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809676527 2026-08-29 06:08:09.390000 Fermi/GBM Fermi 809676494 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809672684 2026-08-29 05:04:06.480000 Fermi/GBM Fermi 809672651 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809666656 2026-08-29 03:23:38.100000 Fermi/GBM Fermi 809666623 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809655969 2026-08-29 00:25:31.491801 CHIME F1154714524 1154714524 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809626060 2026-08-28 16:07:02.110000 Fermi/GBM Fermi 809626027 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809618120 2026-08-28 13:54:42.590000 Fermi/GBM Fermi 809618087 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809603891 2026-08-28 09:57:33.565889 CHIME F1175199635 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809569515 2026-08-28 00:24:37.530442 CHIME FRB20201114A Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809556318 2026-08-27 20:44:39.826068 CHIME F1175095172 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809554563 2026-08-27 20:15:25.639291 CHIME F1175090004 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809552509 2026-08-27 19:41:10.840000 Fermi/GBM Fermi 809552475 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809550064 2026-08-27 19:00:26.493465 CHIME F1175085329 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809550063 2026-08-27 19:00:25.570700 CHIME F1175085307 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809550062 2026-08-27 19:00:24.584912 CHIME F1175085306 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809537774 2026-08-27 15:35:36 IceCube Nu 12474624 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809520218 2026-08-27 10:42:59.770000 Fermi/GBM Fermi 809520184 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809512414 2026-08-27 08:32:56.449000 EP EP WXT Trigger #01709291839 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809472030 2026-08-26 21:19:51.699736 CHIME F1174989605 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809439160 2026-08-26 12:12:01.860000 Fermi/GBM Fermi 809439126 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809384559 2026-08-25 21:02:01.597202 CHIME F1174899215 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809378692 2026-08-25 19:24:13.745250 CHIME 1164200563 F1164200563 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809356074 2026-08-25 13:07:15.920000 Fermi/GBM Fermi 809356040 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809348051 2026-08-25 10:53:33 IceCube Nu 44905242 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809310583 2026-08-25 00:29:05.520448 CHIME F1174760277 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809182131 2026-08-23 12:48:12.814196 CHIME F1174605973 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809182130 2026-08-23 12:48:11.828570 CHIME F1174605968 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809161244 2026-08-23 07:00:05.827773 CHIME F1174588599 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809123541 2026-08-22 20:31:42.899000 EP EP WXT Trigger #01709287395 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809122902 2026-08-22 20:21:03.830000 Fermi/GBM Fermi 809122868 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809110274 2026-08-22 16:50:36.627000 SVOM ECLAIRs sb26082201 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
809032936 2026-08-21 19:21:38.296239 CHIME F1174466460 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808996034 2026-08-21 09:06:36.399000 EP EP WXT Trigger #01709286204 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808993852 2026-08-21 08:30:14.220000 Fermi/GBM Fermi 808993819 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808983354 2026-08-21 05:35:16.663974 CHIME F1174394828 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808976127 2026-08-21 03:34:49 IceCube Nu 51776820 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808962032 2026-08-20 23:39:54.220000 CALET/GBM CALET 1471304351 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808962027 2026-08-20 23:39:49.050000 Fermi/GBM Fermi 808961994 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808917983 2026-08-20 11:25:44.900000 Fermi/GBM Fermi 808917949 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808903691 2026-08-20 07:27:33.249000 EP EP WXT Trigger #01709285030 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808892718 2026-08-20 04:24:39.990000 Fermi/GBM Fermi 808892684 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808881179 2026-08-20 01:12:21.280000 Fermi/GBM Fermi 808881146 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
808830113 2026-08-19 11:01:14.800000 Fermi/GBM Fermi 808830079 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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