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 | S250928w | NSBH (85%), BNS (14%), Terrestrial (1%) | Yes |
1443065865.95Sept. 28, 2025 03:37:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000051548730001 per 614.72 years | 1443065865.95 | S250928u | NSBH (88%), BNS (12%) | Yes |
1443065354.12Sept. 28, 2025 03:28:56 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000098829291 per 3.2063e+05 years | 1443065354.12 | S250928s | BNS (56%), NSBH (33%), Terrestrial (11%) | Yes |
1443064842.13Sept. 28, 2025 03:20:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000690223300001 per 45.91 years | 1443064842.13 | S250928i | BBH (96%), NSBH (4%) | Yes |
1443062281.82Sept. 28, 2025 02:37:43 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000016978051 per 1.8664e+06 years | 1443062281.82 | S250928d | Terrestrial (47%), NSBH (36%), BNS (17%) | Yes |
1443059466.13Sept. 28, 2025 01:50:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316880878141 per 100 years | 1443059466.13 | S250928c | NSBH (63%), Terrestrial (21%), BBH (16%) | Yes |
1443058954.05Sept. 28, 2025 01:42:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316880878141 per 100 years | 1443058954.05 | S250928b | Terrestrial (77%), BNS (23%) | Yes |
1443056649.93Sept. 28, 2025 01:03:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316880878141 per 100 years | 1443056649.93 | S250927gw | BBH (51%), Terrestrial (49%) | Yes |
1443048458.25Sept. 27, 2025 22:47:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000029768800000001 per 1.0645 years | 1443048458.25 | S250927gt | BBH (97%), Terrestrial (3%) | Yes |
1443047449.25Sept. 27, 2025 22:30:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000019980880000001 per 1.5859 years | 1443047449.25 | S250927gq | NSBH (58%), Terrestrial (31%), BBH (11%) | Yes |
1443046666.23Sept. 27, 2025 22:17:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000010136146695181 per 3.1262 years | 1443046666.23 | S250927gb | Yes |
1443038217.76Sept. 27, 2025 19:56:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 2.2346e+37 years | 1443038217.76 | S250927fz | Yes |
1443037730.71Sept. 27, 2025 19:48:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443037730.71 | S250927fy | NSBH (88%), BBH (8%), Terrestrial (4%) | Yes |
1443037705.86Sept. 27, 2025 19:48:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443037705.86 | S250927fx | BBH (99%), Terrestrial (1%) | Yes |
1443037449.81Sept. 27, 2025 19:43:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000256076000001 per 123.74 years | 1443037449.81 | S250927fq | BBH (>99%) | Yes |
1443034377.97Sept. 27, 2025 18:52:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443034377.97 |
|---|
