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 | S251001ce | BBH (67%), NSBH (33%) | Yes |
1443371914.09Oct. 1, 2025 16:38:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000001143041 per 2.7723e+07 years | 1443371914.09 | S251001br | Terrestrial (99%) | Yes |
1443348874.00Oct. 1, 2025 10:14:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000040636628370762881282.4 per year | 1443348874.00 | S251001bk | BBH (99%), Terrestrial (1%) | Yes |
1443333257.76Oct. 1, 2025 05:53:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000192057000001 per 164.99 years | 1443333257.76 | S251001bh | Terrestrial (97%), BBH (3%) | Yes |
1443333057.15Oct. 1, 2025 05:50:39 UTC |
GCN Circular Query Notices | VOE |
|
0.00000812694720719167256.47 per year | 1443333057.15 | S251001bd | NSBH (74%), Terrestrial (26%) | Yes |
1443331465.74Oct. 1, 2025 05:24:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002042542000001 per 15.514 years | 1443331465.74 | S251001bc | Yes |
1443331227.64Oct. 1, 2025 05:20:09 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443331227.64 | S251001az | BBH (99%), Terrestrial (1%) | Yes |
1443330442.22Oct. 1, 2025 05:07:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005298362000001 per 5.9807 years | 1443330442.22 | S251001ah | BNS (82%), NSBH (18%) | Yes |
1443321738.15Oct. 1, 2025 02:42:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000285325401 per 1.1106e+05 years | 1443321738.15 | S251001ae | BBH (87%), NSBH (13%) | Yes |
1443320969.97Oct. 1, 2025 02:29:11 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000976481 per 3.2451e+07 years | 1443320969.97 | S251001ab | BBH (85%), NSBH (14%) | Yes |
1443320201.89Oct. 1, 2025 02:16:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002056786000001 per 15.407 years | 1443320201.89 | S251001y | NSBH (>99%) | Yes |
1443319689.94Oct. 1, 2025 02:07:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000115127601 per 2.7524e+05 years | 1443319689.94 | S251001v | BBH (>99%) | Yes |
1443319178.25Oct. 1, 2025 01:59:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000021 per 1.4654e+12 years | 1443319178.25 | S251001i | BBH (89%), NSBH (6%), Terrestrial (4%) | Yes |
1443314825.65Oct. 1, 2025 00:46:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001892334804531 per 16.745 years | 1443314825.65 | S251001f | Yes |
1443313824.30Oct. 1, 2025 00:30:06 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443313824.30 | S251001e | NSBH (76%), BNS (24%) | Yes |
1443313802.17Oct. 1, 2025 00:29:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000002624091 per 1.2076e+07 years | 1443313802.17 |
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