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 | S250930ar | BNS (78%), NSBH (22%) | Yes |
1443238666.14Sept. 30, 2025 03:37:28 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000031 per 1.0697e+12 years | 1443238666.14 | S250930ae | BBH (>99%) | Yes |
1443234569.80Sept. 30, 2025 02:29:11 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000096529870001 per 328.27 years | 1443234569.80 | S250930ac | NSBH (>99%) | Yes |
1443233802.05Sept. 30, 2025 02:16:24 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000008894901001 per 3562.5 years | 1443233802.05 | S250930x | NSBH (94%), BNS (6%) | Yes |
1443233034.13Sept. 30, 2025 02:03:36 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000000000001 per 2.185e+13 years | 1443233034.13 | S250930v | Yes |
1443232541.20Sept. 30, 2025 01:55:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000129229000001 per 245.21 years | 1443232541.20 | S250930s | NSBH (56%), Terrestrial (34%), BBH (10%) | Yes |
1443231242.04Sept. 30, 2025 01:33:44 UTC |
GCN Circular Query Notices | VOE |
|
0.000000001267018336901 per 25.01 years | 1443231242.04 | S250930o | BNS (86%), Terrestrial (14%) | Yes |
1443229193.93Sept. 30, 2025 00:59:35 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000633761756281 per 50 years | 1443229193.93 | S250930m | Terrestrial (89%), NSBH (8%), BNS (3%) | Yes |
1443228937.80Sept. 30, 2025 00:55:19 UTC |
GCN Circular Query Notices | VOE |
|
0.000000042445114286071.3395 per year | 1443228937.80 | S250930h | Terrestrial (80%), BNS (18%), NSBH (2%) | Yes |
1443227913.89Sept. 30, 2025 00:38:15 UTC |
GCN Circular Query Notices | VOE |
|
0.000000019955538806141 per 1.5879 years | 1443227913.89 | S250929kh | BBH (99%), Terrestrial (1%) | Yes |
1443225609.96Sept. 29, 2025 23:59:51 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005607122000001 per 5.6514 years | 1443225609.96 | S250929kc | BBH (>99%) | Yes |
1443223818.06Sept. 29, 2025 23:30:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000035159758848911.1096 per year | 1443223818.06 | S250929ka | NSBH (80%), BBH (15%), Terrestrial (5%) | Yes |
1443223050.20Sept. 29, 2025 23:17:12 UTC |
GCN Circular Query Notices | VOE |
|
0.000000005192950000001 per 6.1021 years | 1443223050.20 | S250929jn | BBH (63%), NSBH (37%) | Yes |
1443218441.90Sept. 29, 2025 22:00:23 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000221210801 per 1.4325e+05 years | 1443218441.90 | S250929je | BBH (99%) | Yes |
1443215625.92Sept. 29, 2025 21:13:27 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000128038000001 per 247.49 years | 1443215625.92 | S250929jc | BNS (84%), Terrestrial (11%), NSBH (5%) | Yes |
1443214857.89Sept. 29, 2025 21:00:39 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000930032400001 per 34.072 years | 1443214857.89 |
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