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: 203 (228 Total - 25 Retracted)
O4 Low Significance Detection Candidates: 3771 (Total)
Show All Public Events
| Event ID | Possible Source (Probability) | Significant | UTC | GCN | Location | FAR | Comments | GPS | S250207bg | BBH (>99%) | Yes |
1422964623.26Feb. 7, 2025 11:56:45 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 6.4428e+27 years | 1422964623.26 | S250206dm | NSBH (55%), BNS (37%), Terrestrial (8%) | Yes |
1422912348.44Feb. 6, 2025 21:25:30 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001267018336901 per 25.01 years | 1422912348.44 | S250205ee | BBH (>99%) | Yes |
1422827553.88Feb. 5, 2025 21:52:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001834753027981 per 17.271 years | 1422827553.88 | S250205bk | BBH (98%), NSBH (1%) | Yes |
1422786959.58Feb. 5, 2025 10:35:41 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000950263752671 per 33.347 years | 1422786959.58 | S250204ax | BBH (>99%) | Yes |
1422683597.00Feb. 4, 2025 05:52:59 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1422683597.00 | S250202cu | BBH (99%) | Yes |
1422557360.51Feb. 2, 2025 18:49:02 UTC |
GCN Circular Query Notices | VOE |
|
0.000000014602373786141 per 2.1701 years | 1422557360.51 |
|---|---|---|---|---|---|---|---|---|
| S250202ad | BNS (96%), Terrestrial (4%) | Yes |
1422505242.54Feb. 2, 2025 04:20:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000004436062047521 per 7.1433 years | RETRACTED | 1422505242.54 | S250119cv | BBH (>99%) | Yes |
1421348576.32Jan. 19, 2025 19:02:38 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000041 per 7.9146e+11 years | 1421348576.32 | S250119ag | BBH (>99%) | Yes |
1421290316.78Jan. 19, 2025 02:51:38 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000334894141 per 94621 years | 1421290316.78 | S250118dp | BBH (>99%) | Yes |
1421255141.22Jan. 18, 2025 17:05:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 5.7028e+16 years | 1421255141.22 | S250118az | BBH (99%) | Yes |
1421215100.47Jan. 18, 2025 05:58:02 UTC |
GCN Circular Query Notices | VOE |
|
0.000000009769726827631 per 3.2435 years | 1421215100.47 | S250118t | BBH (>99%) | Yes |
1421202763.94Jan. 18, 2025 02:32:25 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000397639303861 per 79.691 years | 1421202763.94 | S250114ax | BBH (>99%) | Yes |
1420878141.22Jan. 14, 2025 08:22:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 7.7059e+18 years | 1420878141.22 | S250109bi | BBH (98%), Terrestrial (2%) | Yes |
1420443970.38Jan. 9, 2025 07:45:52 UTC |
GCN Circular Query Notices | VOE |
|
0.000000020496594866901 per 1.546 years | 1420443970.38 | S250109f | BBH (>99%) | Yes |
1420419959.48Jan. 9, 2025 01:05:41 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000002920882641 per 10849 years | 1420419959.48 |
