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 | S251027fq | BBH (>99%) | Yes |
1445608458.15Oct. 27, 2025 13:54:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1445608458.15 | S251027fg | Yes |
1445605897.90Oct. 27, 2025 13:11:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 1.6008e+22 years | 1445605897.90 | S251027fe | BNS (73%), NSBH (25%), Terrestrial (2%) | Yes |
1445605385.76Oct. 27, 2025 13:02:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1445605385.76 | S251027ex | BNS (98%), Terrestrial (2%) | Yes |
1445601545.95Oct. 27, 2025 11:58:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1445601545.95 | S251027el | BBH (>99%) | Yes |
1445597961.84Oct. 27, 2025 10:59:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000010452901279401 per 3.0315 years | 1445597961.84 | S251027eg | Yes |
1445596426.15Oct. 27, 2025 10:33:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000258711287251 per 122.48 years | 1445596426.15 | S251027ef | NSBH (95%), Terrestrial (4%), BBH (1%) | Yes |
1445596169.97Oct. 27, 2025 10:29:11 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1445596169.97 | S251027dz | NSBH (93%), BBH (7%) | Yes |
1445593610.07Oct. 27, 2025 09:46:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000002542486001 per 12463 years | 1445593610.07 | S251027dy | BBH (73%), Terrestrial (27%) | Yes |
1445593098.38Oct. 27, 2025 09:38:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000006465920000001 per 4.9008 years | 1445593098.38 | S251027dw | BNS (72%), Terrestrial (28%) | Yes |
1445592330.13Oct. 27, 2025 09:25:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000003225121000001 per 9.8254 years | 1445592330.13 | S251027du | Yes |
1445591049.85Oct. 27, 2025 09:03:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000002254861861 per 14053 years | 1445591049.85 | S251027dr | BBH (>99%) | Yes |
1445589769.78Oct. 27, 2025 08:42:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000003753012001 per 8443.4 years | 1445589769.78 | S251027de | BBH (51%), NSBH (47%), Terrestrial (2%) | Yes |
1445586442.08Oct. 27, 2025 07:47:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1445586442.08 | S251027cx | BBH (99%) | Yes |
1445583881.94Oct. 27, 2025 07:04:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000192057000001 per 164.99 years | 1445583881.94 | S251027cq | Yes |
1445581597.71Oct. 27, 2025 06:26:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002067660000001 per 15.326 years | 1445581597.71 |
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