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 | S250929ac | BBH (>99%) | Yes |
1443147274.12Sept. 29, 2025 02:14:16 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000027012500001 per 1173.1 years | 1443147274.12 | S250929u | BBH (52%), NSBH (48%) | Yes |
1443145738.08Sept. 29, 2025 01:48:40 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000073370021 per 4.3189e+05 years | 1443145738.08 | S250929t | BBH (>99%) | Yes |
1443145226.21Sept. 29, 2025 01:40:08 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000077437940001 per 409.21 years | 1443145226.21 | S250929s | BBH (>99%) | Yes |
1443144202.13Sept. 29, 2025 01:23:04 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000041 per 7.9146e+11 years | 1443144202.13 | S250929r | BNS (67%), NSBH (33%) | Yes |
1443143690.06Sept. 29, 2025 01:14:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000004402987001 per 7197 years | 1443143690.06 | S250929q | BBH (63%), NSBH (37%) | Yes |
1443142665.94Sept. 29, 2025 00:57:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000048356151 per 6.5531e+05 years | 1443142665.94 | S250929o | Yes |
1443142426.77Sept. 29, 2025 00:53:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443142426.77 | S250929l | Terrestrial (>99%) | Yes |
1443142154.25Sept. 29, 2025 00:48:56 UTC |
GCN Circular Query Notices | VOE |
|
0.000000007285355437161 per 4.3496 years | 1443142154.25 | S250929g | Terrestrial (78%), BNS (13%), NSBH (9%) | Yes |
1443140618.18Sept. 29, 2025 00:23:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000034364080000001.0844 per year | 1443140618.18 | S250928gk | BBH (>99%) | Yes |
1443138313.92Sept. 28, 2025 23:44:55 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000041 per 7.9146e+11 years | 1443138313.92 | S250928gj | Yes |
1443138054.22Sept. 28, 2025 23:40:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000152648000001 per 207.59 years | 1443138054.22 | S250928gi | Yes |
1443138048.18Sept. 28, 2025 23:40:30 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000152648000001 per 207.59 years | 1443138048.18 | S250928gh | BNS (98%), Terrestrial (2%) | Yes |
1443138057.84Sept. 28, 2025 23:40:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000316754584221 per 100.04 years | 1443138057.84 | S250928ge | Yes |
1443138057.85Sept. 28, 2025 23:40:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 1.4728e+50 years | 1443138057.85 | S250928fx | Terrestrial (58%), NSBH (34%), BNS (8%) | Yes |
1443136265.77Sept. 28, 2025 23:10:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000006335091684491 per 5.002 years | 1443136265.77 |
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