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
S190425z BNS (>99%) 1240215503.01April 25, 2019
08:18:05 UTC
GCN Circulars
Notices | VOE
0.000000000000453764791 per 69834 years 1240215503.01
S190421ar BBH (97%), Terrestrial (3%) 1239917954.41April 21, 2019
21:38:56 UTC
GCN Circulars
Notices | VOE
0.000000014887465458551 per 2.1285 years 1239917954.41
S190412m BBH (>99%) 1239082262.22April 12, 2019
05:30:44 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 1.883e+19 years 1239082262.22
S190408an BBH (>99%) 1238782700.29April 8, 2019
18:18:02 UTC
GCN Circulars
Notices | VOE
0.000000000000000002811 per 1.1273e+10 years 1238782700.29
S190405ar Terrestrial (>99%) 1238515308.86April 5, 2019
16:01:30 UTC
GCN Circulars
Notices | VOE
0.000214097319056680006756.4 per year RETRACTED ** IMPORTANT: this trigger (S190405ar) is not considered to be astrophysical in origin (note the large FAR). A GCN Notice was distributed in error. Also, a Retraction GCN Notice was issued but the event ID was truncated to S190405a due to a bug. 1238515308.86