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 O4a.
- Less-significant events are not shown by default. Press "Show All Public Events" to show significant and less-significant events.
O4a Significant Detection Candidates: 41 (45 Total - 4 Retracted)
O4a Low Significance Detection Candidates: 21 (Total)
Show All Public Events
| Event ID | Possible Source (Probability) | Significant | UTC | GCN | Location | FAR | Comments | GPS | S230929af | BBH (>99%) | Yes |
1380036256.46Sept. 29, 2023 15:23:58 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000003231 per 9.8008e+09 years | 1380036256.46 | S230929ae | BBH (>99%) | Yes |
1380036253.43Sept. 29, 2023 15:23:55 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000021841 per 1.4506e+09 years | 1380036253.43 | S230929ad | BBH (>99%) | Yes |
1380036250.81Sept. 29, 2023 15:23:52 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000122461 per 2.5877e+08 years | 1380036250.81 | S230929ac | BBH (>99%) | Yes |
1380036248.29Sept. 29, 2023 15:23:50 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000030951 per 1.0238e+09 years | 1380036248.29 | S230929ab | BBH (>99%) | Yes |
1380036246.01Sept. 29, 2023 15:23:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000214751 per 1.4756e+08 years | 1380036246.01 | S230929aa | BBH (>99%) | Yes |
1380036244.04Sept. 29, 2023 15:23:46 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000076931 per 4.1189e+08 years | 1380036244.04 | S230929z | BBH (>99%) | Yes |
1380036242.28Sept. 29, 2023 15:23:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000145021 per 2.1851e+08 years | 1380036242.28 | S230929y | BBH (>99%) | Yes |
1380036240.76Sept. 29, 2023 15:23:42 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000110201 per 2.8756e+08 years | 1380036240.76 | S230929x | BBH (>99%) | Yes |
1380036238.91Sept. 29, 2023 15:23:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000116771 per 2.7138e+08 years | 1380036238.91 | S230929v | BBH (>99%) | Yes |
1380036084.01Sept. 29, 2023 15:21:06 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000095351 per 3.3234e+08 years | 1380036084.01 | S230929u | BBH (>99%) | Yes |
1380036014.30Sept. 29, 2023 15:19:56 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000030361 per 1.0437e+09 years | 1380036014.30 | S230630x | BBH (>99%) | Yes |
1372193521.23June 30, 2023 20:51:43 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000211 per 1.5171e+11 years | 1372193521.23 | S230630w | BNS (50%), BBH (50%) | Yes |
1372192498.68June 30, 2023 20:34:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000012271 per 2.582e+09 years | 1372192498.68 | S230630v | BBH (>99%) | Yes |
1372191906.63June 30, 2023 20:24:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000004471 per 7.0812e+09 years | 1372191906.63 |
|---|---|---|---|---|---|---|---|---|
| S230630u | BNS (50%), BBH (50%) | Yes |
1372191719.57June 30, 2023 20:21:41 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000012701 per 2.4957e+09 years | RETRACTED | 1372191719.57 |
