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 | S250929dr | BBH (>99%) | Yes |
1443170569.78Sept. 29, 2025 08:42:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000003753012001 per 8443.4 years | 1443170569.78 | S250929de | BBH (51%), NSBH (47%), Terrestrial (2%) | Yes |
1443167242.08Sept. 29, 2025 07:47:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443167242.08 | S250929cx | BBH (99%) | Yes |
1443164681.94Sept. 29, 2025 07:04:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000192057000001 per 164.99 years | 1443164681.94 | S250929cq | Yes |
1443162397.71Sept. 29, 2025 06:26:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002067660000001 per 15.326 years | 1443162397.71 | S250929cp | NSBH (76%), BBH (22%), Terrestrial (2%) | Yes |
1443162378.10Sept. 29, 2025 06:26:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443162378.10 | S250929cm | BBH (>99%) | Yes |
1443161610.10Sept. 29, 2025 06:13:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000107581 per 2.9454e+08 years | 1443161610.10 | S250929cg | NSBH (53%), Terrestrial (39%), BBH (9%) | Yes |
1443160074.11Sept. 29, 2025 05:47:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005701582516041 per 5.5578 years | 1443160074.11 | S250929cf | NSBH (47%), BNS (43%), Terrestrial (10%) | Yes |
1443159818.20Sept. 29, 2025 05:43:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000855070400001 per 37.059 years | 1443159818.20 | S250929bu | BBH (>99%) | Yes |
1443157002.14Sept. 29, 2025 04:56:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000731 per 4.3664e+10 years | 1443157002.14 | S250929ba | BBH (>99%) | Yes |
1443153178.49Sept. 29, 2025 03:52:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000064019000001 per 494.98 years | 1443153178.49 | S250929ap | NSBH (66%), BNS (33%), Terrestrial (1%) | Yes |
1443151113.92Sept. 29, 2025 03:18:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000063354910001 per 500.17 years | 1443151113.92 | S250929ai | BBH (82%), NSBH (18%) | Yes |
1443149577.81Sept. 29, 2025 02:52:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000653418601 per 48496 years | 1443149577.81 | S250929ah | BNS (89%), NSBH (11%) | Yes |
1443149322.10Sept. 29, 2025 02:48:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000358612201 per 88363 years | 1443149322.10 | S250929ae | Yes |
1443148297.84Sept. 29, 2025 02:31:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001171559555901 per 27.048 years | 1443148297.84 | S250929ad | NSBH (85%), BNS (15%) | Yes |
1443148041.89Sept. 29, 2025 02:27:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000011170300001 per 2836.8 years | 1443148041.89 |
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