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
S190910h BNS (61%), Terrestrial (39%) 1252139416.54Sept. 10, 2019
08:29:58 UTC
GCN Circulars
Notices | VOE
0.000000035844861998481.1312 per year 1252139416.54
S190910d NSBH (98%), Terrestrial (2%) 1252113997.24Sept. 10, 2019
01:26:19 UTC
GCN Circulars
Notices | VOE
0.000000003717179897221 per 8.5248 years 1252113997.24
S190901ap BNS (86%), Terrestrial (14%) 1251415879.84Sept. 1, 2019
23:31:01 UTC
GCN Circulars
Notices | VOE
0.000000007027203369741 per 4.5093 years 1251415879.84
S190829u MassGap (90%), Terrestrial (10%) 1251147974.28Aug. 29, 2019
21:05:56 UTC
GCN Circulars
Notices | VOE
0.000000005150665588251 per 6.1522 years RETRACTED 1251147974.28
S190828l BBH (>99%) 1251010527.89Aug. 28, 2019
06:55:09 UTC
GCN Circulars
Notices | VOE
0.000000000046291112721 per 684.54 years 1251010527.89
S190828j BBH (>99%) 1251009263.76Aug. 28, 2019
06:34:05 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 3.7395e+13 years 1251009263.76
S190822c BNS (>99%) 1250472617.59Aug. 22, 2019
01:29:59 UTC
GCN Circulars
Notices | VOE
0.000000000000000006151 per 5.1566e+09 years RETRACTED 1250472617.59
S190816i NSBH (83%), Terrestrial (17%) 1249995889.76Aug. 16, 2019
13:04:31 UTC
GCN Circulars
Notices | VOE
0.000000014360040000001 per 2.2067 years RETRACTED 1249995889.76
S190814bv NSBH (>99%) 1249852257.01Aug. 14, 2019
21:10:39 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 1.559e+25 years 1249852257.01
S190808ae Terrestrial (57%), BNS (43%) 1249338099.50Aug. 8, 2019
22:21:21 UTC
GCN Circulars
Notices | VOE
0.000000033658608094791.0622 per year RETRACTED 1249338099.50
S190728q BBH (95%), MassGap (5%) 1248331528.55July 28, 2019
06:45:10 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 1.2541e+15 years 1248331528.55
S190727h BBH (92%), Terrestrial (5%), MassGap (3%) 1248242631.99July 27, 2019
06:03:33 UTC
GCN Circulars
Notices | VOE
0.000000000137820664391 per 229.92 years 1248242631.99
S190720a BBH (99%), Terrestrial (1%) 1247616534.70July 20, 2019
00:08:36 UTC
GCN Circulars
Notices | VOE
0.000000003801055010691 per 8.3367 years 1247616534.70
S190718y Terrestrial (98%), BNS (2%) 1247495730.07July 18, 2019
14:35:12 UTC
GCN Circulars
Notices | VOE
0.000000036484489800261.1514 per year 1247495730.07
S190707q BBH (>99%) 1246527224.18July 7, 2019
09:33:26 UTC
GCN Circulars
Notices | VOE
0.000000000005264777001 per 6018.9 years 1246527224.18