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
S251028fr Yes 1445710242.06Oct. 28, 2025
18:10:24 UTC
GCN Circular Query
Notices | VOE
0.000000000152648000001 per 207.59 years 1445710242.06
S251028fn BBH (>99%) Yes 1445708937.77Oct. 28, 2025
17:48:39 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000041 per 7.9146e+11 years 1445708937.77
S251028fj BNS (63%), NSBH (37%) Yes 1445697289.97Oct. 28, 2025
14:34:31 UTC
GCN Circular Query
Notices | VOE
0.000000000001050904001 per 30153 years 1445697289.97
S251028fg BBH (>99%) Yes 1445696522.21Oct. 28, 2025
14:21:44 UTC
GCN Circular Query
Notices | VOE
0.000000000273064100001 per 116.05 years 1445696522.21
S251028fd Terrestrial (79%), NSBH (16%), BNS (5%) Yes 1445695497.87Oct. 28, 2025
14:04:39 UTC
GCN Circular Query
Notices | VOE
0.000000037739680000001.191 per year 1445695497.87
S251028ez BBH (>99%) Yes 1445694217.91Oct. 28, 2025
13:43:19 UTC
GCN Circular Query
Notices | VOE
0.000000000096529870001 per 328.27 years 1445694217.91
S251028ex BBH (84%), NSBH (15%), Terrestrial (1%) Yes 1445693193.99Oct. 28, 2025
13:26:15 UTC
GCN Circular Query
Notices | VOE
0.000000001252583000001 per 25.298 years 1445693193.99
S251028er BBH (>99%) Yes 1445692426.12Oct. 28, 2025
13:13:28 UTC
GCN Circular Query
Notices | VOE
0.000000000000000052701 per 6.0129e+08 years 1445692426.12
S251028eo BNS (98%), Terrestrial (2%) Yes 1445691658.15Oct. 28, 2025
13:00:40 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1445691658.15
S251028en BBH (>99%) Yes 1445691401.79Oct. 28, 2025
12:56:23 UTC
GCN Circular Query
Notices | VOE
0.000000001829788000001 per 17.318 years 1445691401.79
S251028ej Terrestrial (>99%) Yes 1445686437.14Oct. 28, 2025
11:33:39 UTC
GCN Circular Query
Notices | VOE
0.00001436893820417078453.45 per year 1445686437.14
S251028eg NSBH (87%), BNS (9%), Terrestrial (4%) Yes 1445685770.23Oct. 28, 2025
11:22:32 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1445685770.23
S251028ee BBH (>99%) Yes 1445684746.00Oct. 28, 2025
11:05:27 UTC
GCN Circular Query
Notices | VOE
0.000000000000086801741 per 3.6506e+05 years 1445684746.00
S251028dy Yes 1445681436.08Oct. 28, 2025
10:10:18 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1445681436.08
S251028dp Terrestrial (53%), BNS (46%) Yes 1445679625.94Oct. 28, 2025
09:40:07 UTC
GCN Circular Query
Notices | VOE
0.000000011403165032081 per 2.7789 years 1445679625.94