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: 1659 (1659 Total - 0 Retracted)
O4c Low Significance Detection Candidates: 771 (Total)
Show All Public Events
| Event ID | Possible Source (Probability) | Significant | UTC | GCN | Location | FAR | Comments | GPS | S250923ec | Yes |
1442657436.08Sept. 23, 2025 10:10:18 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1442657436.08 | S250923dz | Terrestrial (99%) | Yes |
1442656649.94Sept. 23, 2025 09:57:11 UTC |
GCN Circular Query Notices | VOE |
|
0.0000023980970000000075.678 per year | 1442656649.94 | S250923dt | Terrestrial (53%), BNS (46%) | Yes |
1442655625.94Sept. 23, 2025 09:40:07 UTC |
GCN Circular Query Notices | VOE |
|
0.000000011403165032081 per 2.7789 years | 1442655625.94 | S250923dp | Terrestrial (>99%) | Yes |
1442654179.50Sept. 23, 2025 09:16:01 UTC |
GCN Circular Query Notices | VOE |
|
0.00002159188000000000681.39 per year | 1442654179.50 | S250923da | BNS (80%), NSBH (20%) | Yes |
1442650250.19Sept. 23, 2025 08:10:32 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000058703871 per 5.398e+05 years | 1442650250.19 | S250923cv | BNS (78%), NSBH (22%) | Yes |
1442649482.01Sept. 23, 2025 07:57:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000062367681 per 5.0809e+05 years | 1442649482.01 | S250923cr | BNS (93%), NSBH (7%) | Yes |
1442648970.15Sept. 23, 2025 07:49:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000040951 per 7.7384e+08 years | 1442648970.15 | S250923cp | Yes |
1442647969.88Sept. 23, 2025 07:32:31 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1442647969.88 | S250923bz | Terrestrial (92%), NSBH (6%), BNS (1%) | Yes |
1442640009.90Sept. 23, 2025 05:19:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000023123084648381 per 1.3704 years | 1442640009.90 | S250923bw | Yes |
1442639258.49Sept. 23, 2025 05:07:20 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1442639258.49 | 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 |
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