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: 203 (228 Total - 25 Retracted)

O4 Low Significance Detection Candidates: 3781 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S241102br BBH (99%) Yes 1414586476.79Nov. 2, 2024
12:40:58 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 2.7753e+33 years 1414586476.79
S241101ee BBH (>99%) Yes 1414533941.06Nov. 1, 2024
22:05:23 UTC
GCN Circular Query
Notices | VOE
0.000000000013748469631 per 2304.8 years 1414533941.06
S241011k BBH (>99%) Yes 1412725132.96Oct. 11, 2024
23:38:34 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 1.252e+26 years 1412725132.96
S241009em BBH (>99%) Yes 1412546713.52Oct. 9, 2024
22:04:55 UTC
GCN Circular Query
Notices | VOE
0.000000002817613965901 per 11.246 years 1412546713.52
S241009an BBH (>99%) Yes 1412498914.79Oct. 9, 2024
08:48:16 UTC
GCN Circular Query
Notices | VOE
0.000000000001932011931 per 16402 years 1412498914.79
S241009l BBH (98%), Terrestrial (2%) Yes 1412476133.69Oct. 9, 2024
02:28:35 UTC
GCN Circular Query
Notices | VOE
0.000000033102798114381.0446 per year 1412476133.69
S241007bw BBH (99%), Terrestrial (1%) Yes 1412325001.19Oct. 7, 2024
08:29:43 UTC
GCN Circular Query
Notices | VOE
0.000000016424418010761 per 1.9293 years 1412325001.19
S241006k BBH (>99%) Yes 1412214831.50Oct. 6, 2024
01:53:33 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 5.3285e+33 years 1412214831.50
S241005bo Terrestrial (98%), BNS (2%) Yes 1412162869.54Oct. 5, 2024
11:27:31 UTC
GCN Circular Query
Notices | VOE
0.000000085713805594102.7049 per year RETRACTED 1412162869.54
S241002e BBH (>99%) Yes 1411873577.67Oct. 2, 2024
03:05:59 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 2.2588e+13 years 1411873577.67
S240930du BBH (67%), Terrestrial (33%) Yes 1411775192.95Sept. 30, 2024
23:46:14 UTC
GCN Circular Query
Notices | VOE
0.000000012804600000001 per 2.4747 years 1411775192.95
S240930aa BBH (>99%) Yes 1411704017.96Sept. 30, 2024
03:59:59 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000311 per 1.0344e+11 years 1411704017.96
S240925n BBH (>99%) Yes 1411261107.99Sept. 25, 2024
00:58:09 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000041 per 7.9146e+11 years 1411261107.99
S240924a BBH (>99%) Yes 1411171414.55Sept. 24, 2024
00:03:16 UTC
GCN Circular Query
Notices | VOE
0.000000002462291760471 per 12.869 years 1411171414.55
S240923ct BBH (>99%) Yes 1411159224.11Sept. 23, 2024
20:40:06 UTC
GCN Circular Query
Notices | VOE
0.000000000000000764281 per 4.1462e+07 years 1411159224.11