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: 1224 (1224 Total - 0 Retracted)

O4c Low Significance Detection Candidates: 563 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S250922kb BNS (84%), Terrestrial (11%), NSBH (5%) Yes 1442610057.89Sept. 22, 2025
21:00:39 UTC
GCN Circular Query
Notices | VOE
0.000000000930032400001 per 34.072 years 1442610057.89
S250922ka Yes 1442609290.19Sept. 22, 2025
20:47:52 UTC
GCN Circular Query
Notices | VOE
0.000000000000000020771 per 1.526e+09 years 1442609290.19
S250922jz BBH (50%), Terrestrial (50%) Yes 1442608522.02Sept. 22, 2025
20:35:04 UTC
GCN Circular Query
Notices | VOE
0.000000023302900000001 per 1.3598 years 1442608522.02
S250922jv BBH (>99%) Yes 1442607754.23Sept. 22, 2025
20:22:16 UTC
GCN Circular Query
Notices | VOE
0.000000001829788000001 per 17.318 years 1442607754.23
S250922jg BBH (>99%) Yes 1442604938.13Sept. 22, 2025
19:35:20 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 2.4752e+41 years 1442604938.13
S250922jf Yes 1442604449.35Sept. 22, 2025
19:27:11 UTC
GCN Circular Query
Notices | VOE
0.000000000129229000001 per 245.21 years 1442604449.35
S250922iw Terrestrial (76%), BNS (18%), NSBH (6%) Yes 1442602377.77Sept. 22, 2025
18:52:39 UTC
GCN Circular Query
Notices | VOE
0.000000031870810000001.0058 per year 1442602377.77
S250922ip BBH (69%), Terrestrial (31%) Yes 1442600330.00Sept. 22, 2025
18:18:32 UTC
GCN Circular Query
Notices | VOE
0.0000008497425900191626.816 per year 1442600330.00
S250922in BBH (>99%) Yes 1442599305.88Sept. 22, 2025
18:01:27 UTC
GCN Circular Query
Notices | VOE
0.000000038010550106931.1995 per year 1442599305.88