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 O4.
  • Less-significant events are not shown by default. Press "Show All Public Events" to show significant and less-significant events.

O4 Significant Detection Candidates: 1659 (1659 Total - 0 Retracted)

O4 Low Significance Detection Candidates: 771 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S250926di Yes 1442944033.56Sept. 26, 2025
17:46:55 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1442944033.56
S250926dd BBH (>99%) Yes 1442943242.14Sept. 26, 2025
17:33:44 UTC
GCN Circular Query
Notices | VOE
0.000000000000279293901 per 1.1346e+05 years 1442943242.14
S250926db BBH (90%), Terrestrial (10%) Yes 1442942730.04Sept. 26, 2025
17:25:12 UTC
GCN Circular Query
Notices | VOE
0.000000007170130000001 per 4.4195 years 1442942730.04
S250926cw Yes 1442942218.23Sept. 26, 2025
17:16:40 UTC
GCN Circular Query
Notices | VOE
0.000000000000793812771 per 39919 years 1442942218.23
S250926cm BBH (95%), Terrestrial (5%) Yes 1442940426.22Sept. 26, 2025
16:46:48 UTC
GCN Circular Query
Notices | VOE
0.000000036533180000001.1529 per year 1442940426.22
S250926ch Terrestrial (59%), BNS (23%), NSBH (18%) Yes 1442940170.02Sept. 26, 2025
16:42:32 UTC
GCN Circular Query
Notices | VOE
0.000000013148510000001 per 2.41 years 1442940170.02
S250926cg BBH (84%), NSBH (16%) Yes 1442939657.89Sept. 26, 2025
16:33:59 UTC
GCN Circular Query
Notices | VOE
0.000000000000000976481 per 3.2451e+07 years 1442939657.89
S250926ce BBH (>99%) Yes 1442938401.63Sept. 26, 2025
16:13:03 UTC
GCN Circular Query
Notices | VOE
0.000000000064019000001 per 494.98 years 1442938401.63
S250926cd BBH (>99%) Yes 1442938378.01Sept. 26, 2025
16:12:40 UTC
GCN Circular Query
Notices | VOE
0.000000000026830790001 per 1181 years 1442938378.01
S250926bz NSBH (97%), BNS (2%) Yes 1442937865.83Sept. 26, 2025
16:04:07 UTC
GCN Circular Query
Notices | VOE
0.000000000000031684001 per 1.0001e+06 years 1442937865.83
S250926bx Terrestrial (77%), BNS (23%) Yes 1442936329.98Sept. 26, 2025
15:38:31 UTC
GCN Circular Query
Notices | VOE
0.000000050997488060131.6094 per year 1442936329.98
S250926bv BBH (98%), NSBH (2%) Yes 1442935562.14Sept. 26, 2025
15:25:44 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000101 per 3.2633e+11 years 1442935562.14
S250926bq NSBH (55%), BNS (45%) Yes 1442899466.01Sept. 26, 2025
05:24:08 UTC
GCN Circular Query
Notices | VOE
0.000000000000000252681 per 1.2541e+08 years 1442899466.01
S250926bl NSBH (69%), BNS (17%), Terrestrial (14%) Yes 1442899209.87Sept. 26, 2025
05:19:51 UTC
GCN Circular Query
Notices | VOE
0.000000001203878000001 per 26.322 years 1442899209.87
S250926bk BBH (98%), Terrestrial (2%) Yes 1442898954.10Sept. 26, 2025
05:15:36 UTC
GCN Circular Query
Notices | VOE
0.000000000448133000001 per 70.711 years 1442898954.10