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 O4c.
- Less-significant events are not shown by default. Press "Show All Public Events" to show significant and less-significant events.
O4c Significant Detection Candidates: 1659 (1659 Total - 0 Retracted)
O4c Low Significance Detection Candidates: 771 (Total)
Show All Public Events
| Event ID | Possible Source (Probability) | Significant | UTC | GCN | Location | FAR | Comments | GPS | S250923ix | NSBH (>99%) | Yes |
1442706698.26Sept. 23, 2025 23:51:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000986315201 per 32128 years | 1442706698.26 | S250923ip | BBH (64%), NSBH (35%) | Yes |
1442705417.95Sept. 23, 2025 23:29:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000377131700001 per 84.024 years | 1442705417.95 | S250923io | NSBH (58%), BBH (42%) | Yes |
1442705162.18Sept. 23, 2025 23:25:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000352391601 per 89923 years | 1442705162.18 | S250923im | BBH (97%), Terrestrial (3%) | Yes |
1442704393.90Sept. 23, 2025 23:12:55 UTC |
GCN Circular Query Notices | VOE |
|
0.000000051175743310241.615 per year | 1442704393.90 | S250923ic | BNS (63%), NSBH (37%) | Yes |
1442702089.98Sept. 23, 2025 22:34:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000004659131 per 6.8013e+06 years | 1442702089.98 | S250923hv | BBH (97%), Terrestrial (3%) | Yes |
1442701578.12Sept. 23, 2025 22:26:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000044515202557691.4048 per year | 1442701578.12 | S250923hs | Yes |
1442700322.21Sept. 23, 2025 22:05:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1442700322.21 | S250923hr | BNS (67%), NSBH (33%) | Yes |
1442699785.89Sept. 23, 2025 21:56:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000268711 per 1.1793e+08 years | 1442699785.89 | S250923ho | Yes |
1442699018.10Sept. 23, 2025 21:43:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005042906222461 per 6.2837 years | 1442699018.10 | S250923hl | Terrestrial (99%) | Yes |
1442698171.62Sept. 23, 2025 21:29:13 UTC |
GCN Circular Query Notices | VOE |
|
0.000099672625413685383145.4 per year | 1442698171.62 | S250923hj | Yes |
1442697738.19Sept. 23, 2025 21:22:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000061571 per 5.1468e+08 years | 1442697738.19 | S250923hh | BNS (99%), Terrestrial (1%) | Yes |
1442697226.22Sept. 23, 2025 21:13:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000528339116611 per 59.977 years | 1442697226.22 | S250923hf | BNS (97%), NSBH (2%), Terrestrial (1%) | Yes |
1442696458.23Sept. 23, 2025 21:00:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000089944830001 per 352.31 years | 1442696458.23 | S250923hc | NSBH (98%), BNS (2%) | Yes |
1442695690.04Sept. 23, 2025 20:47:52 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000002821 per 1.1243e+10 years | 1442695690.04 | S250923hb | Terrestrial (>99%) | Yes |
1442695433.97Sept. 23, 2025 20:43:35 UTC |
GCN Circular Query Notices | VOE |
|
0.000061925680000000001954.2 per year | 1442695433.97 |
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