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 | S251004cp | Terrestrial (74%), NSBH (18%), BNS (9%) | Yes |
1443611786.25Oct. 4, 2025 11:16:08 UTC |
GCN Circular Query Notices | VOE |
|
0.000000024706857569501 per 1.2826 years | 1443611786.25 | S251004cn | BBH (85%), Terrestrial (15%) | Yes |
1443611529.76Oct. 4, 2025 11:11:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000008200117486301 per 3.8643 years | 1443611529.76 | S251004by | BBH (98%), Terrestrial (2%) | Yes |
1443594377.83Oct. 4, 2025 06:25:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000009793931000001 per 3.2355 years | 1443594377.83 | S251004az | Yes |
1443583643.20Oct. 4, 2025 03:27:05 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443583643.20 | S251004ay | BBH (55%), NSBH (44%) | Yes |
1443583626.22Oct. 4, 2025 03:26:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000432944000001 per 73.192 years | 1443583626.22 | S251004aw | Terrestrial (72%), NSBH (27%) | Yes |
1443583369.91Oct. 4, 2025 03:22:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000018371765885011 per 1.7248 years | 1443583369.91 | S251004at | BBH (>99%) | Yes |
1443582345.80Oct. 4, 2025 03:05:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000046246169296761.4594 per year | 1443582345.80 | S251004ar | NSBH (52%), BBH (46%), Terrestrial (2%) | Yes |
1443582090.17Oct. 4, 2025 03:01:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443582090.17 | S251004ak | BBH (76%), Terrestrial (24%) | Yes |
1443579298.36Oct. 4, 2025 02:14:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000012675800000001 per 2.4999 years | 1443579298.36 | S251004ad | Terrestrial (>99%) | Yes |
1443577186.53Oct. 4, 2025 01:39:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000044688100000000001410.2 per year | 1443577186.53 | S251004ab | BBH (98%), Terrestrial (2%) | Yes |
1443576713.95Oct. 4, 2025 01:31:35 UTC |
GCN Circular Query Notices | VOE |
|
0.000000014103240000001 per 2.2469 years | 1443576713.95 | S251004u | BBH (85%), NSBH (15%) | Yes |
1443574922.10Oct. 4, 2025 01:01:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000001473517001 per 21505 years | 1443574922.10 | S251004q | Terrestrial (61%), NSBH (33%), BNS (6%) | Yes |
1443574153.95Oct. 4, 2025 00:48:55 UTC |
GCN Circular Query Notices | VOE |
|
0.000000014074930000001 per 2.2514 years | 1443574153.95 | S251004n | BBH (61%), NSBH (39%) | Yes |
1443573386.15Oct. 4, 2025 00:36:08 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000021 per 1.4654e+12 years | 1443573386.15 | S251004j | Yes |
1443572896.24Oct. 4, 2025 00:27:58 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000152648000001 per 207.59 years | 1443572896.24 |
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