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
785547903 2025-11-22 23:44:26.900000 Fermi/GBM Fermi 785547871 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785512468 2025-11-22 13:53:51.299000 EP EP WXT Trigger #01709248658 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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']
785504730 2025-11-22 11:44:53.950000 Fermi/GBM Fermi 785504698 Complete
785501368 2025-11-22 10:48:51.409928 CHIME F1140620139 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785483094 2025-11-22 05:44:17.700000 Fermi/GBM Fermi 785483062 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785471500 2025-11-22 02:31:04.230000 Fermi/GBM Fermi 785471469 Complete
785454558 2025-11-21 21:48:41.774113 CHIME F1140533263 Complete
785435495 2025-11-21 16:30:58.990000 Fermi/GBM Fermi 785435463 Complete
785434356 2025-11-21 16:11:59.699000 EP EP WXT Trigger #01709248635 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785399184 2025-11-21 06:25:47.854941 CHIME F1140460599 Complete
785388383 2025-11-21 03:25:46.720000 Fermi/GBM Fermi 785388351 Waiting for: ['n_OUTFOV', 'n_INFOV']
785387878 2025-11-21 03:17:22.040000 CALET/GBM CALET 1447729705 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785351341 2025-11-20 17:08:24.883851 CHIME F1140331341 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785337967 2025-11-20 13:25:30.710000 CALET/GBM CALET 1447679795 Waiting for: ['n_OUTFOV', 'n_INFOV']
785332456 2025-11-20 11:53:40 CALET/GBM CALET 1447674284 Complete
785279110 2025-11-19 21:04:34.092577 CHIME F1140246468 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785271358 2025-11-19 18:55:22.249000 EP EP WXT Trigger #01709248403 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785271151 2025-11-19 18:51:54.630340 CHIME F1140225204 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785250803 2025-11-19 13:12:46.599000 EP EP WXT Trigger #01709248388 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785236628 2025-11-19 09:16:31.861541 CHIME F1140166688 Complete
785234880 2025-11-19 08:47:23.892000 SVOM ECLAIRs sb25111901 Complete
785199370 2025-11-18 22:55:33.607606 CHIME F1140088161 Complete
785198441 2025-11-18 22:40:05.030000 Fermi/GBM Fermi 785198410 Complete
785190726 2025-11-18 20:31:30.090000 Fermi/GBM Fermi 785190695 Complete
785188331 2025-11-18 19:51:34.726470 CHIME F1140063764 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785185370 2025-11-18 19:02:14.170000 Fermi/GBM Fermi 785185339 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785177325 2025-11-18 16:48:09.042073 CHIME F1140044241 Complete
785176985 2025-11-18 16:42:29.170000 EP EP WXT Trigger #11900480769 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785162491 2025-11-18 12:40:54.731934 IGWN G619010 S251118cm Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785148588 2025-11-18 08:49:11.463900 IGWN G618949 S251118bq Complete
785147227 2025-11-18 08:26:31.259000 IGWN S251118bo Complete
785131699 2025-11-18 04:07:42.881814 IGWN G618858 S251118aj Complete
785128242 2025-11-18 03:10:05.541400 IGWN G618843 S251118ac Complete
785127925 2025-11-18 03:04:48.320714 IGWN G618833 S251118ab Complete
785123373 2025-11-18 01:48:56.675500 IGWN G618800 S251118m Complete
785118338 2025-11-18 00:25:02.229000 IGWN G618786 S251118c Complete
785109344 2025-11-17 21:55:07.377200 IGWN G618755 S251117du Complete
785108349 2025-11-17 21:38:33.116812 IGWN G618733 S251117dq Complete
785106817 2025-11-17 21:13:01.169125 IGWN G618726 S251117dn Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785105850 2025-11-17 20:56:54.172889 IGWN G618715 S251117dj Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785104082 2025-11-17 20:27:25.582517 CHIME F1139929162 Complete
785084580 2025-11-17 15:02:23.421422 IGWN G618666 S251117cw Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
785084099 2025-11-17 14:54:22.634000 IGWN S251117cv Complete
785081632 2025-11-17 14:13:15.902300 IGWN G618653 S251117cq Complete
785074828 2025-11-17 12:19:52.140000 Fermi/GBM Fermi 785074797 Complete
785072243 2025-11-17 11:36:46.639100 IGWN G618598 S251117bw Complete
785070021 2025-11-17 10:59:45.205000 IGWN G618587 S251117bs Waiting for: ['n_INFOV']
785069707 2025-11-17 10:54:30.990723 IGWN G618580 S251117bq Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
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