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 | S251028y | NSBH (94%), BNS (6%) | Yes |
1445652234.13Oct. 28, 2025 02:03:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 2.185e+13 years | 1445652234.13 | S251028w | Yes |
1445651741.20Oct. 28, 2025 01:55:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1445651741.20 | S251028t | NSBH (56%), Terrestrial (34%), BBH (10%) | Yes |
1445650442.04Oct. 28, 2025 01:33:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001267018336901 per 25.01 years | 1445650442.04 | S251028p | BNS (86%), Terrestrial (14%) | Yes |
1445648393.93Oct. 28, 2025 00:59:35 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000633761756281 per 50 years | 1445648393.93 | S251028n | Terrestrial (89%), NSBH (8%), BNS (3%) | Yes |
1445648137.80Oct. 28, 2025 00:55:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000042445114286071.3395 per year | 1445648137.80 | S251028i | Terrestrial (80%), BNS (18%), NSBH (2%) | Yes |
1445647113.89Oct. 28, 2025 00:38:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000019955538806141 per 1.5879 years | 1445647113.89 | S251027kj | BBH (99%), Terrestrial (1%) | Yes |
1445644809.96Oct. 27, 2025 23:59:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005607122000001 per 5.6514 years | 1445644809.96 | S251027kd | BBH (>99%) | Yes |
1445643018.06Oct. 27, 2025 23:30:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000035159758848911.1096 per year | 1445643018.06 | S251027ka | NSBH (80%), BBH (15%), Terrestrial (5%) | Yes |
1445642250.20Oct. 27, 2025 23:17:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005192950000001 per 6.1021 years | 1445642250.20 | S251027jn | BBH (63%), NSBH (37%) | Yes |
1445637641.90Oct. 27, 2025 22:00:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000221210801 per 1.4325e+05 years | 1445637641.90 | S251027je | BBH (99%) | Yes |
1445634825.92Oct. 27, 2025 21:13:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000128038000001 per 247.49 years | 1445634825.92 | S251027jc | BNS (84%), Terrestrial (11%), NSBH (5%) | Yes |
1445634057.89Oct. 27, 2025 21:00:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000930032400001 per 34.072 years | 1445634057.89 | S251027jb | Yes |
1445633290.19Oct. 27, 2025 20:47:52 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000020771 per 1.526e+09 years | 1445633290.19 | S251027ja | BBH (50%), Terrestrial (50%) | Yes |
1445632522.02Oct. 27, 2025 20:35:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000023302900000001 per 1.3598 years | 1445632522.02 | S251027iw | BBH (>99%) | Yes |
1445631754.23Oct. 27, 2025 20:22:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001829788000001 per 17.318 years | 1445631754.23 |
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