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: 81 (92 Total - 11 Retracted)
O4a Low Significance Detection Candidates: 1610 (Total)
Show All Public Events
| Event ID | Possible Source (Probability) | Significant | UTC | GCN | Location | FAR | Comments | GPS | S230914ak | BBH (99%) | Yes |
1378725259.73Sept. 14, 2023 11:14:01 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000900282959291 per 35.198 years | 1378725259.73 | S230911ae | BBH (>99%) | Yes |
1378497222.20Sept. 11, 2023 19:53:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000001889727651 per 16769 years | 1378497222.20 | S230904n | BBH (91%), Terrestrial (9%) | Yes |
1377839431.13Sept. 4, 2023 05:10:13 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002249226000001 per 14.088 years | 1377839431.13 | S230831e | BBH (98%), Terrestrial (2%) | Yes |
1377482072.07Aug. 31, 2023 01:54:14 UTC |
GCN Circular Query Notices | VOE |
|
0.000000019793748035771 per 1.6009 years | 1377482072.07 |
|---|---|---|---|---|---|---|---|---|
| S230830b | NSBH (80%), BBH (20%) | Yes |
1377404536.46Aug. 30, 2023 04:21:58 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000114819473371 per 275.98 years | RETRACTED | 1377404536.46 | S230825k | BBH (>99%) | Yes |
1376972032.55Aug. 25, 2023 04:13:34 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002387521492241 per 13.272 years | 1376972032.55 | S230824r | BBH (>99%) | Yes |
1376883065.75Aug. 24, 2023 03:30:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000016394694631 per 1932.8 years | 1376883065.75 | S230822bm | BBH (98%), Terrestrial (2%) | Yes |
1376780635.50Aug. 22, 2023 23:03:37 UTC |
GCN Circular Query Notices | VOE |
|
0.000000025842980669811 per 1.2262 years | 1376780635.50 | S230820bq | BBH (96%), Terrestrial (4%) | Yes |
1376601933.97Aug. 20, 2023 21:25:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000042307704006821.3351 per year | 1376601933.97 | S230819ax | BBH (99%) | Yes |
1376500768.45Aug. 19, 2023 17:19:10 UTC |
GCN Circular Query Notices | VOE |
|
0.000000008842249687861 per 3.5837 years | 1376500768.45 | S230814ah | BBH (>99%) | Yes |
1376089759.81Aug. 14, 2023 23:09:01 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 1.7159e+13 years | 1376089759.81 | S230814r | BBH (93%), Terrestrial (7%) | Yes |
1376029178.46Aug. 14, 2023 06:19:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000048102567262731.518 per year | 1376029178.46 | S230811n | BBH (>99%) | Yes |
1375759294.29Aug. 11, 2023 03:21:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1375759294.29 |
| S230810af | BNS (99%) | Yes |
1375696885.57Aug. 10, 2023 10:01:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000029046118399381 per 1.091 years | RETRACTED | 1375696885.57 |
| S230808i | Yes |
1375502644.43Aug. 8, 2023 04:03:46 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000068514200001 per 462.5 years | RETRACTED | 1375502644.43 |
