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
S250925s NSBH (76%), BNS (15%), Terrestrial (9%) Yes 1442799114.02Sept. 25, 2025
01:31:36 UTC
GCN Circular Query
Notices | VOE
0.000000000759869400001 per 41.702 years 1442799114.02
S250925r NSBH (>99%) Yes 1442798857.93Sept. 25, 2025
01:27:19 UTC
GCN Circular Query
Notices | VOE
0.000000000000000016101 per 1.9682e+09 years 1442798857.93
S250925n NSBH (53%), BBH (45%), Terrestrial (2%) Yes 1442797833.81Sept. 25, 2025
01:10:15 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1442797833.81
S250925m NSBH (68%), BBH (32%) Yes 1442797578.07Sept. 25, 2025
01:06:00 UTC
GCN Circular Query
Notices | VOE
0.000000000000000007121 per 4.4487e+09 years 1442797578.07
S250925k Yes 1442796825.89Sept. 25, 2025
00:53:27 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1442796825.89
S250925j BBH (98%), Terrestrial (2%) Yes 1442796825.97Sept. 25, 2025
00:53:27 UTC
GCN Circular Query
Notices | VOE
0.000000000512152000001 per 61.872 years 1442796825.97
S250925i BNS (79%), Terrestrial (21%) Yes 1442796553.84Sept. 25, 2025
00:48:55 UTC
GCN Circular Query
Notices | VOE
0.000000000950263752671 per 33.347 years 1442796553.84
S250924fs Yes 1442792969.93Sept. 24, 2025
23:49:11 UTC
GCN Circular Query
Notices | VOE
0.000000000000477848901 per 66314 years 1442792969.93
S250924fq Yes 1442792730.23Sept. 24, 2025
23:45:12 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1442792730.23
S250924fm BNS (72%), NSBH (28%) Yes 1442790921.78Sept. 24, 2025
23:15:03 UTC
GCN Circular Query
Notices | VOE
0.000000000000000002431 per 1.3036e+10 years 1442790921.78
S250924ff Yes 1442788638.18Sept. 24, 2025
22:37:00 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1442788638.18
S250924eo Yes 1442783769.63Sept. 24, 2025
21:15:51 UTC
GCN Circular Query
Notices | VOE
0.000000003052950000001 per 10.379 years 1442783769.63
S250924en Terrestrial (60%), NSBH (26%), BNS (14%) Yes 1442783754.22Sept. 24, 2025
21:15:36 UTC
GCN Circular Query
Notices | VOE
0.000000004702130529391 per 6.7391 years 1442783754.22
S250924ef Yes 1442782730.09Sept. 24, 2025
20:58:32 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 5.5914e+32 years 1442782730.09
S250924ea NSBH (73%), Terrestrial (15%), BBH (12%) Yes 1442780938.22Sept. 24, 2025
20:28:40 UTC
GCN Circular Query
Notices | VOE
0.000000000569980330991 per 55.595 years 1442780938.22