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 | S250928fu | NSBH (86%), BBH (9%), Terrestrial (5%) | Yes |
1443135497.85Sept. 28, 2025 22:57:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000035029240000001.1054 per year | 1443135497.85 | S250928fp | NSBH (58%), Terrestrial (25%), BNS (17%) | Yes |
1443133962.15Sept. 28, 2025 22:32:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002685716000001 per 11.799 years | 1443133962.15 | S250928fj | BBH (90%), Terrestrial (10%) | Yes |
1443132425.86Sept. 28, 2025 22:06:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000028191157995971 per 1.124 years | 1443132425.86 | S250928ew | NSBH (90%), BNS (10%) | Yes |
1443128841.82Sept. 28, 2025 21:07:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000001644081 per 1.9274e+07 years | 1443128841.82 | S250928em | BBH (>99%) | Yes |
1443126026.26Sept. 28, 2025 20:20:08 UTC |
GCN Circular Query Notices | VOE |
|
0.000000003801055010691 per 8.3367 years | 1443126026.26 | S250928eh | BBH (97%), Terrestrial (3%) | Yes |
1443124489.86Sept. 28, 2025 19:54:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002880850000001 per 11 years | 1443124489.86 | S250928eg | Terrestrial (52%), NSBH (42%), BBH (6%) | Yes |
1443120649.80Sept. 28, 2025 18:50:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316880878141 per 100 years | 1443120649.80 | S250928ec | Yes |
1443117849.71Sept. 28, 2025 18:03:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002843030000001 per 11.146 years | 1443117849.71 | S250928eb | BNS (66%), NSBH (20%), Terrestrial (15%) | Yes |
1443117834.17Sept. 28, 2025 18:03:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001290192000001 per 24.561 years | 1443117834.17 | S250928ea | BBH (93%), Terrestrial (7%) | Yes |
1443117577.75Sept. 28, 2025 17:59:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000053793600000001.6976 per year | 1443117577.75 | S250928dt | NSBH (62%), BNS (38%) | Yes |
1443111178.19Sept. 28, 2025 16:12:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000676008601 per 46875 years | 1443111178.19 | S250928do | BBH (>99%) | Yes |
1443110665.85Sept. 28, 2025 16:04:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000006335091684491 per 5.002 years | 1443110665.85 | S250928dk | BNS (98%), Terrestrial (2%) | Yes |
1443109642.00Sept. 28, 2025 15:47:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443109642.00 | S250928df | BBH (>99%) | Yes |
1443108382.22Sept. 28, 2025 15:26:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000064019000001 per 494.98 years | 1443108382.22 | S250928de | BBH (98%), Terrestrial (2%) | Yes |
1443108362.22Sept. 28, 2025 15:25:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000576171000001 per 54.998 years | 1443108362.22 |
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