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
S251028ik BBH (>99%) Yes 1445728393.89Oct. 28, 2025
23:12:55 UTC
GCN Circular Query
Notices | VOE
0.000000000361840800001 per 87.575 years 1445728393.89
S251028ia BNS (63%), NSBH (37%) Yes 1445726089.98Oct. 28, 2025
22:34:31 UTC
GCN Circular Query
Notices | VOE
0.000000000000004659131 per 6.8013e+06 years 1445726089.98
S251028hq Yes 1445724322.21Oct. 28, 2025
22:05:04 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1445724322.21
S251028hp BNS (67%), NSBH (33%) Yes 1445723785.89Oct. 28, 2025
21:56:07 UTC
GCN Circular Query
Notices | VOE
0.000000000000000268711 per 1.1793e+08 years 1445723785.89
S251028hm Yes 1445723018.10Oct. 28, 2025
21:43:20 UTC
GCN Circular Query
Notices | VOE
0.000000005042906222461 per 6.2837 years 1445723018.10
S251028hj Yes 1445721738.19Oct. 28, 2025
21:22:00 UTC
GCN Circular Query
Notices | VOE
0.000000000000000061571 per 5.1468e+08 years 1445721738.19
S251028hh Yes 1445721226.22Oct. 28, 2025
21:13:28 UTC
GCN Circular Query
Notices | VOE
0.000000000026730210371 per 1185.5 years 1445721226.22
S251028hf BNS (97%), NSBH (2%), Terrestrial (1%) Yes 1445720458.23Oct. 28, 2025
21:00:40 UTC
GCN Circular Query
Notices | VOE
0.000000000089944830001 per 352.31 years 1445720458.23
S251028hb NSBH (98%), BNS (2%) Yes 1445719690.04Oct. 28, 2025
20:47:52 UTC
GCN Circular Query
Notices | VOE
0.000000000000000002821 per 1.1243e+10 years 1445719690.04
S251028gq BBH (>99%) Yes 1445717898.03Oct. 28, 2025
20:18:00 UTC
GCN Circular Query
Notices | VOE
0.000000001829788000001 per 17.318 years 1445717898.03
S251028go BBH (>99%) Yes 1445717386.17Oct. 28, 2025
20:09:28 UTC
GCN Circular Query
Notices | VOE
0.000000000234028800001 per 135.4 years 1445717386.17
S251028gh Terrestrial (>99%) Yes 1445715223.27Oct. 28, 2025
19:33:25 UTC
GCN Circular Query
Notices | VOE
0.000071828300000000002266.7 per year 1445715223.27
S251028ge BBH (>99%) Yes 1445714313.98Oct. 28, 2025
19:18:15 UTC
GCN Circular Query
Notices | VOE
0.000000000064019000001 per 494.98 years 1445714313.98
S251028gd BBH (99%) Yes 1445714074.07Oct. 28, 2025
19:14:16 UTC
GCN Circular Query
Notices | VOE
0.000000000315389134091 per 100.47 years 1445714074.07
S251028ga BBH (99%), Terrestrial (1%) Yes 1445712010.02Oct. 28, 2025
18:39:52 UTC
GCN Circular Query
Notices | VOE
0.000000006144283000001 per 5.1573 years 1445712010.02