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 | S230807f | BBH (95%), Terrestrial (5%) | Yes |
1375476663.42Aug. 7, 2023 20:50:45 UTC |
GCN Circular Query Notices | VOE |
|
0.000000071417573509802.2538 per year | 1375476663.42 | S230806ak | BBH (>99%) | Yes |
1375389659.94Aug. 6, 2023 20:40:41 UTC |
GCN Circular Query Notices | VOE |
|
0.000000002958345677551 per 10.711 years | 1375389659.94 | S230805x | BBH (>99%) | Yes |
1375242187.97Aug. 5, 2023 03:42:49 UTC |
GCN Circular Query Notices | VOE |
|
0.000000009185882942511 per 3.4497 years | 1375242187.97 | S230802aq | BBH (90%), NSBH (6%), Terrestrial (3%) | Yes |
1375011257.96Aug. 2, 2023 11:33:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000022274558490271 per 1.4226 years | 1375011257.96 | S230731an | BBH (81%), NSBH (18%) | Yes |
1374875605.89July 31, 2023 21:53:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1374875605.89 | S230729z | BBH (>99%) | Yes |
1374654215.20July 29, 2023 08:23:17 UTC |
GCN Circular Query Notices | VOE |
|
0.000000003393122427941 per 9.3389 years | 1374654215.20 | S230726a | BBH (>99%) | Yes |
1374366598.06July 26, 2023 00:29:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000038320541 per 8.2692e+05 years | 1374366598.06 | S230723ac | BBH (87%), Terrestrial (13%) | Yes |
1374142732.45July 23, 2023 10:18:34 UTC |
GCN Circular Query Notices | VOE |
|
0.000000053302440000001.6821 per year | 1374142732.45 |
|---|---|---|---|---|---|---|---|---|
| S230715bw | NSBH (91%), BBH (9%) | Yes |
1373483155.95July 15, 2023 19:05:37 UTC |
GCN Circular Query Notices | VOE |
|
0.000000007843396154781 per 4.0401 years | RETRACTED | 1373483155.95 |
| S230712a | BBH (>99%) | Yes |
1373158455.74July 12, 2023 00:53:57 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000003269081 per 9.6933e+06 years | RETRACTED | 1373158455.74 | S230709bi | BBH (>99%) | Yes |
1372940865.20July 9, 2023 12:27:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000003060764756451 per 10.353 years | 1372940865.20 | S230708cf | BBH (99%), Terrestrial (1%) | Yes |
1372892993.48July 8, 2023 23:09:35 UTC |
GCN Circular Query Notices | VOE |
|
0.000000015503439880951 per 2.0439 years | 1372892993.48 |
| S230708bi | BBH (>99%) | Yes |
1372871875.19July 8, 2023 17:17:37 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001112553439121 per 28.482 years | RETRACTED | 1372871875.19 | S230708z | BBH (95%), Terrestrial (5%) | Yes |
1372835957.44July 8, 2023 07:18:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000070262880322702.2173 per year | 1372835957.44 | S230708t | BBH (97%), Terrestrial (3%) | Yes |
1372829843.12July 8, 2023 05:37:05 UTC |
GCN Circular Query Notices | VOE |
|
0.000000043309317768191.3667 per year | 1372829843.12 |
