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
789070207 2026-01-02 18:09:30.389419 CHIME F1146857029 Waiting for: ['EARTHPLOT', 'SKYPLOT', 'LIGHTCURVE', 'ATTITUDE', '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
788827091 2025-12-30 22:37:34.890000 Fermi/GBM Fermi 788827059 Complete
788826958 2025-12-30 22:35:21.954693 CHIME F1146514896 Complete
788819671 2025-12-30 20:33:54.623842 CHIME 435359646 F435359646 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788800439 2025-12-30 15:13:22.773084 CHIME F1146479790 Complete
788782618 2025-12-30 10:16:21.410000 Fermi/GBM Fermi 788782586 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788771845 2025-12-30 07:16:48.480000 Fermi/GBM Fermi 788771813 Complete
788750578 2025-12-30 01:22:21.299000 EP EP WXT Trigger #01709250693 Waiting for: ['LIGHTCURVE']
788738490 2025-12-29 22:00:53.479279 CHIME F1146402181 Complete
788731166 2025-12-29 19:58:49.899000 EP EP WXT Trigger #01709250690 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788719297 2025-12-29 16:41:00.320649 CHIME F1146355032 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788713702 2025-12-29 15:07:45.910000 Fermi/GBM Fermi 788713670 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788659166 2025-12-28 23:58:49.300000 Fermi/GBM Fermi 788659134 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788651522 2025-12-28 21:51:25.730000 Fermi/GBM Fermi 788651490 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788601607 2025-12-28 07:59:30.698530 CHIME 252213533 F252213533 Complete
788582364 2025-12-28 02:38:48.046225 CHIME 376069927 F376069927 Complete
788575367 2025-12-28 00:42:10.260000 Fermi/GBM Fermi 788575335 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788546258 2025-12-27 16:37:01.999000 EP EP WXT Trigger #01709250662 Waiting for: ['n_INFOV']
788493265 2025-12-27 01:53:48.220000 CALET/GBM CALET 1450835026 Complete
788492583 2025-12-27 01:42:26.990000 Fermi/GBM Fermi 788492551 Complete
788488206 2025-12-27 00:29:30 Fermi/GBM Fermi 788488175 Complete
788452997 2025-12-26 14:42:40.510000 Fermi/GBM Fermi 788452965 Waiting for: ['n_FULLRATE', 'n_SPLITRATE', 'n_OUTFOV', 'n_INFOV']
788425889 2025-12-26 07:10:53.049612 CHIME F1146083234 Complete
788410550 2025-12-26 02:55:13.270000 Fermi/GBM EP Fermi 788410518 EP WXT Trigger #01709250617 Complete
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