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
789518344 2026-01-07 22:38:27.430000 Fermi/GBM Fermi 789518312 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789508658 2026-01-07 19:57:01.670000 Fermi/GBM Fermi 789508626 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789501736 2026-01-07 18:01:39.210000 Fermi/GBM Fermi 789501704 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789473604 2026-01-07 10:12:47.299000 EP EP WXT Trigger #01709251112 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE']
789440483 2026-01-07 01:00:46.409263 CHIME F1147447173 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE']
789360118 2026-01-06 02:41:21.887990 CHIME F1147310002 Complete
789348133 2026-01-05 23:21:36.550000 Fermi/GBM Fermi 789348101 Complete
789346068 2026-01-05 22:47:11.670000 Fermi/GBM Fermi 789346036 Complete
789331693 2026-01-05 18:47:36.299000 EP EP WXT Trigger #01709251028 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789325190 2026-01-05 16:59:13.424268 CHIME F1147226993 Complete
789298821 2026-01-05 09:39:44.504686 CHIME F1147214797 Complete
789297576 2026-01-05 09:18:59.415935 CHIME F1147214473 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789286194 2026-01-05 06:09:17.531514 CHIME F1147205942 Complete
789285067 2026-01-05 05:50:30.199000 EP EP WXT Trigger #01709250995 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789272400 2026-01-05 02:19:23.031922 CHIME F1147178849 Complete
789263914 2026-01-04 23:57:57.420000 Fermi/GBM Fermi 789263882 Complete
789215181 2026-01-04 10:25:44.049000 EP EP WXT Trigger #01709250979 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789198634 2026-01-04 05:49:57.620000 Fermi/GBM Fermi 789198602 Complete
789151462 2026-01-03 16:43:45.854464 CHIME F1146994340 Complete
789101176 2026-01-03 02:45:39.654629 CHIME F1146929591 Complete
789098088 2026-01-03 01:54:11.610000 Fermi/GBM Fermi 789098056 Complete
789096218 2026-01-03 01:23:02 CALET/GBM CALET 1451438589 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789081160 2026-01-02 21:12:03.370000 Fermi/GBM Fermi 789081128 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789070207 2026-01-02 18:09:30.389419 CHIME F1146857029 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789056941 2026-01-02 14:28:24.410000 CALET/GBM CALET 1451399313 Complete
789051047 2026-01-02 12:50:10.694219 CHIME F1146834248 Complete
789047634 2026-01-02 11:53:17.070000 Fermi/GBM Fermi 789047602 Complete
789047224 2026-01-02 11:46:27.079260 CHIME F1146833401 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789032242 2026-01-02 07:36:45.760000 CALET/GBM CALET 1451374615 Complete
789019822 2026-01-02 04:09:45.548000 SVOM ECLAIRs sb26010201 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789016047 2026-01-02 03:06:50.575820 CHIME F1146794034 Complete
789015182 2026-01-02 02:52:25.200000 Fermi/GBM Fermi 789015150 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789012621 2026-01-02 02:09:44.140000 CALET/GBM CALET 1451354993 Complete
789005845 2026-01-02 00:16:48.589960 CHIME F1146775617 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
789004861 2026-01-02 00:00:24.460000 Fermi/GBM Fermi 789004829 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788997395 2026-01-01 21:55:58.333638 CHIME F1146756918 Complete
788973386 2026-01-01 15:15:49.060000 CALET/GBM CALET 1451315759 Complete
788951258 2026-01-01 09:07:01.758000 REALFAST Frfcand260101UT09JMr Complete
788942179 2026-01-01 06:35:42.149000 EP EP WXT Trigger #01709250882 Complete
788925992 2026-01-01 02:05:55.823276 CHIME F1146658594 Complete
788922847 2026-01-01 01:13:30.357422 CHIME F1146650955 Complete
788921827 2026-01-01 00:56:30.650000 Fermi/GBM Fermi 788921795 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788879853 2025-12-31 13:16:56.060000 Fermi/GBM Fermi 788879821 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788872781 2025-12-31 11:19:04.980000 CALET/GBM CALET 1451215157 Complete
788871830 2025-12-31 11:03:13.604369 CHIME F1146566325 Complete
788845092 2025-12-31 03:37:35.196270 CHIME 436543521 F436543521 Complete
788844398 2025-12-31 03:26:02.014138 CHIME 231298202 F231298202 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788843129 2025-12-31 03:04:52.345885 CHIME 231298202 F231298202 Complete
788837479 2025-12-31 01:30:42.540000 Fermi/GBM Fermi 788837447 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788833579 2025-12-31 00:25:42.730000 Fermi/GBM Fermi 788833547 Complete
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