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 | S250927fm | NSBH (77%), BNS (21%), Terrestrial (2%) | Yes |
1443033354.23Sept. 27, 2025 18:35:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000116750800001 per 271.42 years | 1443033354.23 | S250927fl | BBH (>99%) | Yes |
1443032842.10Sept. 27, 2025 18:27:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443032842.10 | S250927fk | BBH (>99%) | Yes |
1443032347.17Sept. 27, 2025 18:18:49 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000064019000001 per 494.98 years | 1443032347.17 | S250927fd | BBH (>99%) | Yes |
1443030025.99Sept. 27, 2025 17:40:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000291171 per 1.0883e+08 years | 1443030025.99 | S250927fb | Terrestrial (56%), NSBH (26%), BBH (18%) | Yes |
1443029001.89Sept. 27, 2025 17:23:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000017738256716571 per 1.7864 years | 1443029001.89 | S250927em | BNS (75%), Terrestrial (25%) | Yes |
1443024649.87Sept. 27, 2025 16:10:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002548773372981 per 12.433 years | 1443024649.87 | S250927el | Terrestrial (57%), NSBH (36%), BBH (7%) | Yes |
1443022345.97Sept. 27, 2025 15:32:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000023439839232601 per 1.3519 years | 1443022345.97 | S250927ec | NSBH (41%), Terrestrial (30%), BBH (29%) | Yes |
1443020042.24Sept. 27, 2025 14:53:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002217282089571 per 14.291 years | 1443020042.24 | S250927ds | Yes |
1443018018.28Sept. 27, 2025 14:20:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443018018.28 | S250927do | NSBH (73%), BBH (20%), Terrestrial (7%) | Yes |
1443017738.20Sept. 27, 2025 14:15:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000007971470000001 per 3.9752 years | 1443017738.20 | S250927dm | BBH (56%), NSBH (32%), Terrestrial (12%) | Yes |
1443017482.04Sept. 27, 2025 14:11:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000028824667164421 per 1.0993 years | 1443017482.04 | S250927di | BBH (98%), Terrestrial (2%) | Yes |
1443016202.07Sept. 27, 2025 13:49:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000049096960554781.5494 per year | 1443016202.07 | S250927de | BBH (98%), NSBH (2%) | Yes |
1443015433.74Sept. 27, 2025 13:36:55 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000631245601 per 50199 years | 1443015433.74 | S250927da | Terrestrial (77%), BNS (23%) | Yes |
1443015177.83Sept. 27, 2025 13:32:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000033575985927781.0596 per year | 1443015177.83 | S250927cz | Yes |
1443014169.04Sept. 27, 2025 13:15:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443014169.04 |
|---|
