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 O4c.
- Less-significant events are not shown by default. Press "Show All Public Events" to show significant and less-significant events.
O4c Significant Detection Candidates: 1199 (1199 Total - 0 Retracted)
O4c Low Significance Detection Candidates: 546 (Total)
Show All Public Events
| Event ID | Possible Source (Probability) | Significant | UTC | GCN | Location | FAR | Comments | GPS | S250923bv | BBH (94%), NSBH (6%) | Yes |
1442639241.83Sept. 23, 2025 05:07:03 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001563978098731 per 20.261 years | 1442639241.83 | S250923bt | BBH (>99%) | Yes |
1442638986.12Sept. 23, 2025 05:02:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000004943221 per 6.4104e+06 years | 1442638986.12 | S250923bm | BBH (>99%) | Yes |
1442637705.82Sept. 23, 2025 04:41:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000001845871 per 1.7167e+07 years | 1442637705.82 | S250923az | NSBH (>99%) | Yes |
1442635145.77Sept. 23, 2025 03:58:47 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000001170118291 per 27081 years | 1442635145.77 | S250923ax | Terrestrial (59%), BBH (41%) | Yes |
1442634378.00Sept. 23, 2025 03:46:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000034570200000001.091 per year | 1442634378.00 | S250923av | BNS (78%), NSBH (22%) | Yes |
1442633866.14Sept. 23, 2025 03:37:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000031 per 1.0697e+12 years | 1442633866.14 | S250923al | BBH (94%), Terrestrial (6%) | Yes |
1442631306.23Sept. 23, 2025 02:54:48 UTC |
GCN Circular Query Notices | VOE |
|
0.000000089289058024542.8177 per year | 1442631306.23 | S250923ag | BBH (>99%) | Yes |
1442629769.80Sept. 23, 2025 02:29:11 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000096529870001 per 328.27 years | 1442629769.80 | S250923ae | NSBH (>99%) | Yes |
1442629002.05Sept. 23, 2025 02:16:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000008894901001 per 3562.5 years | 1442629002.05 | S250923z | NSBH (94%), BNS (6%) | Yes |
1442628234.13Sept. 23, 2025 02:03:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 2.185e+13 years | 1442628234.13 | S250923x | Yes |
1442627741.20Sept. 23, 2025 01:55:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1442627741.20 | S250923u | NSBH (56%), Terrestrial (34%), BBH (10%) | Yes |
1442626442.04Sept. 23, 2025 01:33:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001267018336901 per 25.01 years | 1442626442.04 | S250923q | BNS (>99%) | Yes |
1442624393.95Sept. 23, 2025 00:59:35 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000290291 per 1.0916e+08 years | 1442624393.95 | S250923o | Terrestrial (89%), NSBH (8%), BNS (3%) | Yes |
1442624137.80Sept. 23, 2025 00:55:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000042445114286071.3395 per year | 1442624137.80 | S250923i | Terrestrial (80%), BNS (18%), NSBH (2%) | Yes |
1442623113.89Sept. 23, 2025 00:38:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000019955538806141 per 1.5879 years | 1442623113.89 |
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