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: 1213 (1213 Total - 0 Retracted)

O4c Low Significance Detection Candidates: 556 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S251019gi BBH (>99%) Yes 1444952713.92Oct. 19, 2025
23:44:55 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000041 per 7.9146e+11 years 1444952713.92
S251019gh NSBH (98%), BNS (2%) Yes 1444952457.87Oct. 19, 2025
23:40:39 UTC
GCN Circular Query
Notices | VOE
0.000000000000000001321 per 2.4043e+10 years 1444952457.87
S251019ge BNS (98%), Terrestrial (2%) Yes 1444952457.84Oct. 19, 2025
23:40:39 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1444952457.84
S251019fx Terrestrial (58%), NSBH (34%), BNS (8%) Yes 1444950665.77Oct. 19, 2025
23:10:47 UTC
GCN Circular Query
Notices | VOE
0.000000006335091684491 per 5.002 years 1444950665.77
S251019fu NSBH (86%), BBH (9%), Terrestrial (5%) Yes 1444949897.85Oct. 19, 2025
22:57:59 UTC
GCN Circular Query
Notices | VOE
0.000000035029240000001.1054 per year 1444949897.85
S251019fp NSBH (58%), Terrestrial (25%), BNS (17%) Yes 1444948362.15Oct. 19, 2025
22:32:24 UTC
GCN Circular Query
Notices | VOE
0.000000002685716000001 per 11.799 years 1444948362.15
S251019fj BBH (90%), Terrestrial (10%) Yes 1444946825.86Oct. 19, 2025
22:06:47 UTC
GCN Circular Query
Notices | VOE
0.000000028191157995971 per 1.124 years 1444946825.86
S251019fd Terrestrial (>99%) Yes 1444946058.23Oct. 19, 2025
21:54:00 UTC
GCN Circular Query
Notices | VOE
0.000081490184865070652571.6 per year 1444946058.23
S251019ew NSBH (90%), BNS (10%) Yes 1444943241.82Oct. 19, 2025
21:07:03 UTC
GCN Circular Query
Notices | VOE
0.000000000000001644081 per 1.9274e+07 years 1444943241.82
S251019em BBH (>99%) Yes 1444940426.26Oct. 19, 2025
20:20:08 UTC
GCN Circular Query
Notices | VOE
0.000000003801055010691 per 8.3367 years 1444940426.26
S251019eh BBH (97%), Terrestrial (3%) Yes 1444938889.86Oct. 19, 2025
19:54:31 UTC
GCN Circular Query
Notices | VOE
0.000000002880850000001 per 11 years 1444938889.86
S251019eg Terrestrial (52%), NSBH (42%), BBH (6%) Yes 1444935049.80Oct. 19, 2025
18:50:31 UTC
GCN Circular Query
Notices | VOE
0.000000000316880878141 per 100 years 1444935049.80
S251019ec Yes 1444932249.71Oct. 19, 2025
18:03:51 UTC
GCN Circular Query
Notices | VOE
0.000000002843030000001 per 11.146 years 1444932249.71
S251019eb BNS (66%), NSBH (20%), Terrestrial (15%) Yes 1444932234.17Oct. 19, 2025
18:03:36 UTC
GCN Circular Query
Notices | VOE
0.000000001290192000001 per 24.561 years 1444932234.17
S251019ea BBH (93%), Terrestrial (7%) Yes 1444931977.75Oct. 19, 2025
17:59:19 UTC
GCN Circular Query
Notices | VOE
0.000000053793600000001.6976 per year 1444931977.75