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 | S250930ei | BBH (>99%) | Yes |
1443272201.79Sept. 30, 2025 12:56:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001829788000001 per 17.318 years | 1443272201.79 | S250930ec | NSBH (87%), BNS (9%), Terrestrial (4%) | Yes |
1443266570.23Sept. 30, 2025 11:22:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443266570.23 | S250930eb | BBH (>99%) | Yes |
1443265546.00Sept. 30, 2025 11:05:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000086801741 per 3.6506e+05 years | 1443265546.00 | S250930dv | Yes |
1443262236.08Sept. 30, 2025 10:10:18 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443262236.08 | S250930dm | Terrestrial (53%), BNS (46%) | Yes |
1443260425.94Sept. 30, 2025 09:40:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000011403165032081 per 2.7789 years | 1443260425.94 | S250930cu | BNS (80%), NSBH (20%) | Yes |
1443255050.19Sept. 30, 2025 08:10:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000058703871 per 5.398e+05 years | 1443255050.19 | S250930cp | BNS (78%), NSBH (22%) | Yes |
1443254282.01Sept. 30, 2025 07:57:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000062367681 per 5.0809e+05 years | 1443254282.01 | S250930cm | BNS (93%), NSBH (7%) | Yes |
1443253770.15Sept. 30, 2025 07:49:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000040951 per 7.7384e+08 years | 1443253770.15 | S250930ck | Yes |
1443252769.88Sept. 30, 2025 07:32:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443252769.88 | S250930bu | Terrestrial (92%), NSBH (6%), BNS (1%) | Yes |
1443244809.90Sept. 30, 2025 05:19:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000023123084648381 per 1.3704 years | 1443244809.90 | S250930br | Yes |
1443244058.49Sept. 30, 2025 05:07:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443244058.49 | S250930bo | BBH (>99%) | Yes |
1443243786.12Sept. 30, 2025 05:02:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000004943221 per 6.4104e+06 years | 1443243786.12 | S250930bh | BBH (>99%) | Yes |
1443242505.82Sept. 30, 2025 04:41:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000001845871 per 1.7167e+07 years | 1443242505.82 | S250930av | NSBH (76%), BNS (23%) | Yes |
1443239945.77Sept. 30, 2025 03:58:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000059645740001 per 531.27 years | 1443239945.77 | S250930au | Terrestrial (59%), BBH (41%) | Yes |
1443239178.00Sept. 30, 2025 03:46:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000034570200000001.091 per year | 1443239178.00 |
|---|
