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: 160 (178 Total - 18 Retracted)

O4 Low Significance Detection Candidates: 2690 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
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
S240922df BBH (>99%) Yes 1411050084.39Sept. 22, 2024
14:21:06 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 2.2729e+16 years 1411050084.39
S240921cw BBH (>99%) Yes 1410985133.79Sept. 21, 2024
20:18:35 UTC
GCN Circular Query
Notices | VOE
0.000000000801878167691 per 39.517 years 1410985133.79
S240920dw BBH (>99%) Yes 1410871242.88Sept. 20, 2024
12:40:24 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 3.2668e+43 years 1410871242.88
S240920bz BBH (>99%) Yes 1410852882.48Sept. 20, 2024
07:34:24 UTC
GCN Circular Query
Notices | VOE
0.000000000316754584221 per 100.04 years 1410852882.48
S240919bn BBH (>99%) Yes 1410761777.19Sept. 19, 2024
06:15:59 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000041 per 7.9146e+11 years 1410761777.19