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.

O3 Detection Candidates: 56 (80 Total - 24 Retracted)


Event ID Possible Source (Probability) UTC GCN Location FAR Comments GPS
S190706ai BBH (99%), Terrestrial (1%) 1246487219.34July 6, 2019
22:26:41 UTC
GCN Circulars
Notices | VOE
0.000000001900527505351 per 16.673 years 1246487219.34
S190701ah BBH (93%), Terrestrial (7%) 1246048404.58July 1, 2019
20:33:06 UTC
GCN Circulars
Notices | VOE
0.000000019155375553241 per 1.6543 years 1246048404.58
S190630ag BBH (94%), MassGap (5%) 1245955943.18June 30, 2019
18:52:05 UTC
GCN Circulars
Notices | VOE
0.000000000000143533561 per 2.2077e+05 years 1245955943.18
S190602aq BBH (99%) 1243533585.09June 2, 2019
17:59:27 UTC
GCN Circulars
Notices | VOE
0.000000001900527505351 per 16.673 years 1243533585.09
S190524q Terrestrial (71%), BNS (29%) 1242708744.68May 24, 2019
04:52:06 UTC
GCN Circulars
Notices | VOE
0.000000006970803418511 per 4.5458 years RETRACTED 1242708744.68
S190521r BBH (>99%) 1242459857.46May 21, 2019
07:43:59 UTC
GCN Circulars
Notices | VOE
0.000000000316754584221 per 100.04 years 1242459857.46
S190521g BBH (97%), Terrestrial (3%) 1242442967.61May 21, 2019
03:02:29 UTC
GCN Circulars
Notices | VOE
0.000000003801055010691 per 8.3367 years 1242442967.61
S190519bj BBH (96%), Terrestrial (4%) 1242315362.66May 19, 2019
15:35:44 UTC
GCN Circulars
Notices | VOE
0.000000005701582516041 per 5.5578 years 1242315362.66
S190518bb BNS (75%), Terrestrial (25%) 1242242377.47May 18, 2019
19:19:19 UTC
GCN Circulars
Notices | VOE
0.000000010041531275661 per 3.1557 years RETRACTED 1242242377.47
S190517h BBH (98%), MassGap (2%) 1242107479.84May 17, 2019
05:51:01 UTC
GCN Circulars
Notices | VOE
0.000000002372909985021 per 13.354 years 1242107479.84
S190513bm BBH (94%), MassGap (5%) 1241816086.87May 13, 2019
20:54:28 UTC
GCN Circulars
Notices | VOE
0.000000000000373400311 per 84864 years 1241816086.87
S190512at BBH (99%), Terrestrial (1%) 1241719652.42May 12, 2019
18:07:14 UTC
GCN Circulars
Notices | VOE
0.000000001900527505351 per 16.673 years 1241719652.42
S190510g Terrestrial (58%), BNS (42%) 1241492397.29May 10, 2019
02:59:39 UTC
GCN Circulars
Notices | VOE
0.000000008833569157301 per 3.5872 years 1241492397.29
S190503bf BBH (96%), MassGap (3%) 1240944862.41May 3, 2019
18:54:04 UTC
GCN Circulars
Notices | VOE
0.000000001636111595041 per 19.368 years 1240944862.41
S190426c BNS (49%), MassGap (24%), Terrestrial (14%), NSBH (13%) 1240327333.35April 26, 2019
15:21:55 UTC
GCN Circulars
Notices | VOE
0.000000019469418176341 per 1.6276 years 1240327333.35