LIGO/Virgo/KAGRA Public Alerts

  • More details about public alerts are provided in the LIGO/Virgo/KAGRA Alerts User Guide.
  • Retractions are marked in red. Retraction means that the candidate was manually vetted and is no longer considered a candidate of interest.
  • Less-significant events are marked in grey, and are not manually vetted. Consult the LVK Alerts User Guide for more information on significance in O4c.
  • Less-significant events are not shown by default. Press "Show All Public Events" to show significant and less-significant events.

O4c Significant Detection Candidates: 1659 (1659 Total - 0 Retracted)

O4c Low Significance Detection Candidates: 771 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S250925cv BBH (>99%) Yes 1442819081.87Sept. 25, 2025
07:04:23 UTC
GCN Circular Query
Notices | VOE
0.000000000000000297491 per 1.0652e+08 years 1442819081.87
S250925cu BBH (>99%) Yes 1442818314.24Sept. 25, 2025
06:51:36 UTC
GCN Circular Query
Notices | VOE
0.000000000682137900001 per 46.454 years 1442818314.24
S250925cd BBH (>99%) Yes 1442815754.16Sept. 25, 2025
06:08:56 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1442815754.16
S250925br BNS (71%), NSBH (29%) Yes 1442808841.80Sept. 25, 2025
04:13:43 UTC
GCN Circular Query
Notices | VOE
0.000000000000001418801 per 2.2334e+07 years 1442808841.80
S250925bl NSBH (75%), Terrestrial (15%), BBH (10%) Yes 1442807562.09Sept. 25, 2025
03:52:24 UTC
GCN Circular Query
Notices | VOE
0.000000021390840000001 per 1.4814 years 1442807562.09
S250925bj Yes 1442807306.04Sept. 25, 2025
03:48:08 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 1.6874e+27 years 1442807306.04
S250925bd NSBH (66%), BNS (32%), Terrestrial (2%) Yes 1442806282.11Sept. 25, 2025
03:31:04 UTC
GCN Circular Query
Notices | VOE
0.000000000113872000001 per 278.28 years 1442806282.11
S250925aw NSBH (64%), BNS (36%) Yes 1442805258.21Sept. 25, 2025
03:14:00 UTC
GCN Circular Query
Notices | VOE
0.000000000000000363971 per 8.7063e+07 years 1442805258.21
S250925ar Yes 1442804233.84Sept. 25, 2025
02:56:55 UTC
GCN Circular Query
Notices | VOE
0.000000002117291000001 per 14.966 years 1442804233.84
S250925al BBH (>99%) Yes 1442802186.25Sept. 25, 2025
02:22:48 UTC
GCN Circular Query
Notices | VOE
0.000000000021945970001 per 1443.9 years 1442802186.25
S250925ah BBH (99%), Terrestrial (1%) Yes 1442801674.06Sept. 25, 2025
02:14:16 UTC
GCN Circular Query
Notices | VOE
0.000000002217282089571 per 14.291 years 1442801674.06
S250925ag BBH (86%), Terrestrial (9%), NSBH (5%) Yes 1442801418.21Sept. 25, 2025
02:10:00 UTC
GCN Circular Query
Notices | VOE
0.000000011015860000001 per 2.8766 years 1442801418.21
S250925ae Yes 1442800922.16Sept. 25, 2025
02:01:44 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1442800922.16
S250925x NSBH (57%), Terrestrial (37%), BNS (6%) Yes 1442800137.77Sept. 25, 2025
01:48:39 UTC
GCN Circular Query
Notices | VOE
0.000000003487188000001 per 9.087 years 1442800137.77
S250925u BBH (>99%) Yes 1442799626.21Sept. 25, 2025
01:40:08 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1442799626.21