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: 162 (180 Total - 18 Retracted)

O4 Low Significance Detection Candidates: 2722 (Total)


Show All Public Events

Event ID Possible Source (Probability) Significant UTC GCN Location FAR Comments GPS
S241125n BBH (>99%) Yes 1416531694.78Nov. 25, 2024
01:01:16 UTC
GCN Circular Query
Notices | VOE
0.000000000950263752671 per 33.347 years 1416531694.78
S241122a BBH (96%), Terrestrial (4%) Yes 1416333078.88Nov. 22, 2024
17:51:00 UTC
GCN Circular Query
Notices | VOE
0.000000063933690087532.0176 per year 1416333078.88
S241116cq BBH (>99%) Yes 1415805491.68Nov. 16, 2024
15:17:53 UTC
GCN Circular Query
Notices | VOE
0.000000006968600852941 per 4.5473 years 1415805491.68
S241114bi BBH (91%), NSBH (9%) Yes 1415663596.15Nov. 14, 2024
23:52:58 UTC
GCN Circular Query
Notices | VOE
0.000000000000178080181 per 1.7794e+05 years 1415663596.15
S241114y BBH (>99%) Yes 1415587649.78Nov. 14, 2024
02:47:11 UTC
GCN Circular Query
Notices | VOE
0.000000000000090607801 per 3.4973e+05 years 1415587649.78
S241113p BBH (>99%) Yes 1415550925.50Nov. 13, 2024
16:35:07 UTC
GCN Circular Query
Notices | VOE
0.000000000000014702171 per 2.1553e+06 years 1415550925.50
S241111bn BBH (>99%) Yes 1415358970.57Nov. 11, 2024
11:15:52 UTC
GCN Circular Query
Notices | VOE
0.000000000000000000001 per 4.4557e+21 years 1415358970.57
S241110br BBH (>99%) Yes 1415277701.68Nov. 10, 2024
12:41:23 UTC
GCN Circular Query
Notices | VOE
0.000000004686072356671 per 6.7622 years 1415277701.68
S241109bn NSBH (72%), BBH (28%) Yes 1415188782.90Nov. 9, 2024
11:59:24 UTC
GCN Circular Query
Notices | VOE
0.000000000014242084351 per 2225 years 1415188782.90
S241109p BBH (>99%) Yes 1415158416.00Nov. 9, 2024
03:33:17 UTC
GCN Circular Query
Notices | VOE
0.000000000060413504191 per 524.52 years 1415158416.00
S241104a Terrestrial (49%), NSBH (29%), BBH (22%) Yes 1414726359.15Nov. 4, 2024
03:32:21 UTC
GCN Circular Query
Notices | VOE
0.000000045468013354371.4349 per year RETRACTED 1414726359.15
S241102cy BBH (>99%) Yes 1414594067.73Nov. 2, 2024
14:47:29 UTC
GCN Circular Query
Notices | VOE
0.000000015204220042771 per 2.0842 years 1414594067.73
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