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 | S251001fh | BNS (72%), NSBH (28%) | Yes |
1443395721.78Oct. 1, 2025 23:15:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000002431 per 1.3036e+10 years | 1443395721.78 | S251001fd | Terrestrial (98%), BBH (2%) | Yes |
1443395086.12Oct. 1, 2025 23:04:28 UTC |
GCN Circular Query Notices | VOE |
|
0.00001543672116796012487.15 per year | 1443395086.12 | S251001ey | Yes |
1443393438.18Oct. 1, 2025 22:37:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443393438.18 | S251001eg | Yes |
1443388569.63Oct. 1, 2025 21:15:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000003052950000001 per 10.379 years | 1443388569.63 | S251001ef | Terrestrial (60%), NSBH (26%), BNS (14%) | Yes |
1443388554.22Oct. 1, 2025 21:15:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000004702130529391 per 6.7391 years | 1443388554.22 | S251001dz | Terrestrial (>99%) | Yes |
1443387851.52Oct. 1, 2025 21:03:53 UTC |
GCN Circular Query Notices | VOE |
|
0.00000937238000000000295.77 per year | 1443387851.52 | S251001dw | Yes |
1443387530.09Oct. 1, 2025 20:58:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 5.5914e+32 years | 1443387530.09 | S251001dr | NSBH (73%), Terrestrial (15%), BBH (12%) | Yes |
1443385738.22Oct. 1, 2025 20:28:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000569980330991 per 55.595 years | 1443385738.22 | S251001dh | BBH (>99%) | Yes |
1443379850.23Oct. 1, 2025 18:50:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000613270001 per 51671 years | 1443379850.23 | S251001de | Terrestrial (80%), BBH (20%) | Yes |
1443379082.23Oct. 1, 2025 18:37:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001625267844141 per 19.497 years | 1443379082.23 | S251001dd | Terrestrial (79%), NSBH (16%), BBH (5%) | Yes |
1443378569.91Oct. 1, 2025 18:29:11 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001860181053651 per 17.035 years | 1443378569.91 | S251001da | Yes |
1443377820.09Oct. 1, 2025 18:16:42 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443377820.09 | S251001cu | BBH (>99%) | Yes |
1443376521.92Oct. 1, 2025 17:55:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000001845871 per 1.7167e+07 years | 1443376521.92 | S251001ch | BBH (>99%) | Yes |
1443372958.65Oct. 1, 2025 16:55:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000105017901 per 3.0174e+05 years | 1443372958.65 | S251001cf | BBH (92%), Terrestrial (8%) | Yes |
1443372170.27Oct. 1, 2025 16:42:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001344400000001 per 23.57 years | 1443372170.27 |
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