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 O4a.
  • Less-significant events are not shown by default. Press "Show All Public Events" to show significant and less-significant events.

O4a Significant Detection Candidates: 36 (36 Total - 0 Retracted)

O4a Low Significance Detection Candidates: 11 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S230620h BNS (50%), BBH (50%) Yes 1371314226.53June 20, 2023
16:36:48 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000051 per 6.9217e+11 years 1371314226.53
S230620g BNS (50%), BBH (50%) Yes 1371314037.21June 20, 2023
16:33:39 UTC
GCN Circular Query
Notices | VOE
0.000000000000000001881 per 1.6817e+10 years 1371314037.21
S230620f BNS (50%), BBH (50%) Yes 1371313990.04June 20, 2023
16:32:52 UTC
GCN Circular Query
Notices | VOE
0.000000000000000011261 per 2.8131e+09 years 1371313990.04
S230620c BNS (50%), BBH (50%) Yes 1371309010.95June 20, 2023
15:09:52 UTC
GCN Circular Query
Notices | VOE
0.000000000000000003051 per 1.0374e+10 years 1371309010.95
S230620b BNS (50%), BBH (50%) Yes 1371308913.44June 20, 2023
15:08:15 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000841 per 3.7609e+10 years 1371308913.44
S230620a BNS (50%), BBH (50%) Yes 1371308707.90June 20, 2023
15:04:49 UTC
GCN Circular Query
Notices | VOE
0.000000000000000008191 per 3.8681e+09 years 1371308707.90