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
790699659 2026-01-21 14:47:02.675069 CHIME FRB20201114A Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790697485 2026-01-21 14:10:48.400000 Fermi/GBM Fermi 790697453 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790691632 2026-01-21 12:33:15.600000 Fermi/GBM Fermi 790691600 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790689600 2026-01-21 11:59:23.540012 CHIME F1149587258 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790676676 2026-01-21 08:23:59.470000 CALET/GBM CALET 1453019010 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790655488 2026-01-21 02:30:51.450000 Fermi/GBM Fermi 790655456 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790654889 2026-01-21 02:20:52.640000 Fermi/GBM Fermi 790654857 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790649206 2026-01-21 00:46:09.670000 Fermi/GBM Fermi 790649174 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790643263 2026-01-20 23:07:06.350000 Fermi/GBM Fermi 790643231 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790638221 2026-01-20 21:43:04.496924 CHIME 202355363 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790627735 2026-01-20 18:48:18.585601 CHIME F1149483636 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790624863 2026-01-20 18:00:26.050000 Fermi/GBM Fermi 790624831 Waiting for: ['LIGHTCURVE']
790624143 2026-01-20 17:48:26.140000 Fermi/GBM Fermi 790624111 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790619036 2026-01-20 16:23:19.040000 Fermi/GBM Fermi 790619004 Complete
790618188 2026-01-20 16:09:11.600000 Fermi/GBM Fermi 790618156 Complete
790615774 2026-01-20 15:28:57.370000 Fermi/GBM Fermi 790615742 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790612606 2026-01-20 14:36:09.370000 Fermi/GBM Fermi 790612574 Waiting for: ['LIGHTCURVE']
790610628 2026-01-20 14:03:11.410000 Fermi/GBM Fermi 790610596 Complete
790606893 2026-01-20 13:00:56.690000 Fermi/GBM Fermi 790606861 Complete
790604571 2026-01-20 12:22:14.610000 Fermi/GBM Fermi 790604539 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790601222 2026-01-20 11:26:25.800000 Fermi/GBM Fermi 790601190 Complete
790598743 2026-01-20 10:45:05.940000 Fermi/GBM Fermi 790598710 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790589580 2026-01-20 08:12:23.520000 CALET/GBM CALET 1452931916 Complete
790577661 2026-01-20 04:53:44.539080 CHIME F1149382684 Complete
790576161 2026-01-20 04:28:44.840000 CALET/GBM CALET 1452918498 Complete
790574552 2026-01-20 04:01:54.960000 Fermi/GBM Fermi 790574519 Complete
790570304 2026-01-20 02:51:07.680000 Fermi/GBM Fermi 790570272 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790566313 2026-01-20 01:44:36.140000 Fermi/GBM Fermi 790566281 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790564131 2026-01-20 01:08:14.880000 Fermi/GBM Fermi 790564099 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790560059 2026-01-20 00:00:22.850000 Fermi/GBM Fermi 790560027 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790558260 2026-01-19 23:30:22.970000 Fermi/GBM Fermi 790558227 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790556882 2026-01-19 23:07:24.940000 Fermi/GBM Fermi 790556849 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790556282 2026-01-19 22:57:25.490000 Fermi/GBM Fermi 790556250 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790554353 2026-01-19 22:25:16.780000 Fermi/GBM Fermi 790554321 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790550089 2026-01-19 21:14:11.980000 Fermi/GBM Fermi 790550056 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790547496 2026-01-19 20:30:59.902608 CHIME F1149317452 Complete
790543126 2026-01-19 19:18:09.620000 CALET/GBM CALET 1452885463 Complete
790485644 2026-01-19 03:20:07.240000 Fermi/GBM Fermi 790485612 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790479666 2026-01-19 01:40:29.060000 Fermi/GBM Fermi 790479634 Waiting for: ['LIGHTCURVE', 'n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790452870 2026-01-18 18:13:52.950000 CALET/GBM CALET 1452795209 Complete
790451842 2026-01-18 17:56:45.210000 CALET/GBM CALET 1452794181 Waiting for: ['n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790451305 2026-01-18 17:47:48.730000 Fermi/GBM Fermi 790451273 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790445359 2026-01-18 16:08:42.420000 Fermi/GBM Fermi 790445327 Complete
790400782 2026-01-18 03:45:45.820000 Fermi/GBM Fermi 790400750 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790394733 2026-01-18 02:04:55.940000 Fermi/GBM Fermi 790394700 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790386519 2026-01-17 23:48:02.220000 Fermi/GBM Fermi 790386487 Complete
790384262 2026-01-17 23:10:25.246728 CHIME F1149000333 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790371822 2026-01-17 19:43:05.285000 SVOM ECLAIRs sb26011705 Complete
790338032 2026-01-17 10:19:55.830000 Fermi/GBM Fermi 790338000 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
790315795 2026-01-17 04:09:18.930000 Fermi/GBM Fermi 790315763 Complete
Page 1