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 | S250930gl | BBH (>99%) | Yes |
1443298698.03Sept. 30, 2025 20:18:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001829788000001 per 17.318 years | 1443298698.03 | S250930gj | BBH (>99%) | Yes |
1443298186.17Sept. 30, 2025 20:09:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000234028800001 per 135.4 years | 1443298186.17 | S250930fz | BBH (>99%) | Yes |
1443295113.98Sept. 30, 2025 19:18:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000064019000001 per 494.98 years | 1443295113.98 | S250930fy | BBH (99%) | Yes |
1443294874.07Sept. 30, 2025 19:14:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000315389134091 per 100.47 years | 1443294874.07 | S250930fx | Terrestrial (>99%) | Yes |
1443293321.87Sept. 30, 2025 18:48:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000118209424402028653730.4 per year | 1443293321.87 | S250930fv | BBH (99%), Terrestrial (1%) | Yes |
1443292810.02Sept. 30, 2025 18:39:52 UTC |
GCN Circular Query Notices | VOE |
|
0.000000006144283000001 per 5.1573 years | 1443292810.02 | S250930fm | Yes |
1443291042.06Sept. 30, 2025 18:10:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000152648000001 per 207.59 years | 1443291042.06 | S250930fi | BBH (>99%) | Yes |
1443289737.77Sept. 30, 2025 17:48:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000041 per 7.9146e+11 years | 1443289737.77 | S250930fe | BNS (63%), NSBH (37%) | Yes |
1443278089.97Sept. 30, 2025 14:34:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000001050904001 per 30153 years | 1443278089.97 | S250930fb | BBH (>99%) | Yes |
1443277322.21Sept. 30, 2025 14:21:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000273064100001 per 116.05 years | 1443277322.21 | S250930ey | Terrestrial (79%), NSBH (16%), BNS (5%) | Yes |
1443276297.87Sept. 30, 2025 14:04:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000037739680000001.191 per year | 1443276297.87 | S250930eu | BBH (>99%) | Yes |
1443275017.91Sept. 30, 2025 13:43:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000096529870001 per 328.27 years | 1443275017.91 | S250930es | BBH (84%), NSBH (15%), Terrestrial (1%) | Yes |
1443273993.99Sept. 30, 2025 13:26:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001252583000001 per 25.298 years | 1443273993.99 | S250930em | BBH (>99%) | Yes |
1443273226.12Sept. 30, 2025 13:13:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000052701 per 6.0129e+08 years | 1443273226.12 | S250930ej | BNS (98%), Terrestrial (2%) | Yes |
1443272458.15Sept. 30, 2025 13:00:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443272458.15 |
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