LIGO/Virgo/KAGRA Public Alerts
- Retractions are marked in red.
- More details about public alerts are provided in the LIGO/Virgo/KAGRA Alerts User Guide.
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O4 Detection Candidates: 12 (1 Retraction)
Event ID
Possible Source (Probability)
UTC
GCN
Location
FAR
Comments
GPS
S230603aa
Terrestrial (97%), NSBH (3%)
1369812903.08June 3, 2023
07:34:45 UTC
GCN Circular Query
Notices | VOE
0.0000011545704594978836.435 per year
1369812903.08
S230602ap
1369766434.68June 2, 2023
18:40:16 UTC
GCN Circular Query
Notices | VOE
No public skymap image found.
0.0000014813500000000046.748 per year
Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue.
1369766434.68
S230601bf
BBH (>99%)
1369694512.10June 1, 2023
22:41:34 UTC
GCN Circular Query
Notices | VOE
0.000000000000001713571 per 1.8492e+07 years
1369694512.10
S230531f
1369527703.21May 31, 2023
00:21:25 UTC
GCN Circular Query
Notices | VOE
No public skymap image found.
0.0000008539795619003826.95 per year
Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue.
1369527703.21
S230529ay
HasMassGap (69%), NSBH (62%), BNS (31%), Terrestrial (7%)
1369419318.75May 29, 2023
18:15:00 UTC
GCN Circular Query
Notices | VOE
0.000000000197512118501 per 160.44 years
1369419318.75
S230529p
Terrestrial (97%), HasMassGap (11%), NSBH (2%)
1369391282.70May 29, 2023
10:27:44 UTC
GCN Circular Query
Notices | VOE
0.0000006287578496854019.842 per year
1369391282.70
S230528bt
BBH (88%), Terrestrial (12%), HasMassGap (4%)
1369320707.73May 28, 2023
14:51:29 UTC
GCN Circular Query
Notices | VOE
0.000000287234107830629.0644 per year
1369320707.73
S230528ay
1369307471.67May 28, 2023
11:10:53 UTC
GCN Circular Query
Notices | VOE
No public skymap image found.
0.0000007032685984134222.193 per year
Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue.
1369307471.67
S230528a
HasMassGap (97%), NSBH (44%), Terrestrial (36%), BNS (20%)
1369276052.80May 28, 2023
02:27:14 UTC
GCN Circular Query
Notices | VOE
0.000000303883012975359.5898 per year
Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue.
1369276052.80
S230527ch
1369246246.68May 27, 2023
18:10:28 UTC
GCN Circular Query
Notices | VOE
No public skymap image found.
0.0000025373400000000080.072 per year
Manually removed HIGH_PROFILE label which was initially applied to this Low Significance candidate due to software issue.
1369246246.68
S230527bv
BBH (88%), Terrestrial (12%)
1369243547.82May 27, 2023
17:25:29 UTC
GCN Circular Query
Notices | VOE
0.000000207166848113506.5377 per year
1369243547.82
S230525a
BBH (72%), Terrestrial (28%)
1369017515.86May 25, 2023
02:38:17 UTC
GCN Circular Query
Notices | VOE
0.0000007513615903997723.711 per year
1369017515.86
S230524x
BNS (75%), Terrestrial (25%)
1368994979.84May 24, 2023
20:22:41 UTC
GCN Circular Query
Notices | VOE
0.000000072244439059562.2799 per year
RETRACTED
1368994979.84
ER15 Detection Candidates: 6 (0 Retractions)
Event ID
Possible Source (Probability)
UTC
GCN
Location
FAR
Comments
GPS
S230524b
BBH (73%), Terrestrial (27%)
1368944018.16May 24, 2023
06:13:20 UTC
GCN Circular Query
Notices | VOE
0.0000008255390964696526.052 per year
1368944018.16
S230522n
BBH (99%)
1368804651.39May 22, 2023
15:30:33 UTC
GCN Circular Query
Notices | VOE
0.000000006479128493831 per 4.8908 years
1368804651.39
S230522a
BBH (>99%)
1368783503.14May 22, 2023
09:38:05 UTC
GCN Circular Query
Notices | VOE
0.000000010350851291801 per 3.0614 years
1368783503.14
S230521k
Terrestrial (60%), BNS (25%), NSBH (14%)
1368682261.07May 21, 2023
05:30:43 UTC
GCN Circular Query
Notices | VOE
0.0000024207631668105076.393 per year
1368682261.07
S230520ae
BBH (>99%)
1368658140.57May 20, 2023
22:48:42 UTC
GCN Circular Query
Notices | VOE
0.000000003060602000001 per 10.354 years
1368658140.57
S230518h
NSBH (86%), Terrestrial (10%), BBH (4%)
1368449966.17May 18, 2023
12:59:08 UTC
GCN Circular Query
Notices | VOE
0.000000000321826135211 per 98.463 years
1368449966.17
O3 Detection Candidates: 56 (24 Retractions)
Event ID
Possible Source (Probability)
UTC
GCN
Location
FAR
Comments
GPS
S200316bj
MassGap (>99%)
1268431094.16March 16, 2020
21:57:56 UTC
GCN Circulars
Notices | VOE
0.000000000070979279011 per 446.44 years
1268431094.16
S200311bg
BBH (>99%)
1267963151.40March 11, 2020
11:58:53 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 3.5448e+17 years
1267963151.40
S200308e
NSBH (83%), Terrestrial (17%)
1267665585.60March 8, 2020
01:19:27 UTC
GCN Circulars
Notices | VOE
0.000000003618608000001 per 8.757 years
RETRACTED
1267665585.60
S200303ba
BBH (86%), Terrestrial (14%)
1267272966.71March 3, 2020
12:15:48 UTC
GCN Circulars
Notices | VOE
0.000000013156162340731 per 2.4086 years
RETRACTED
1267272966.71
S200302c
BBH (89%), Terrestrial (11%)
1267149509.52March 2, 2020
01:58:11 UTC
GCN Circulars
Notices | VOE
0.000000009349090689401 per 3.3894 years
1267149509.52
S200225q
BBH (96%), Terrestrial (4%)
1266645879.40Feb. 25, 2020
06:04:21 UTC
GCN Circulars
Notices | VOE
0.000000009185882942511 per 3.4497 years
1266645879.40
S200224ca
BBH (>99%)
1266618172.38Feb. 24, 2020
22:22:34 UTC
GCN Circulars
Notices | VOE
0.000000000016050019531 per 1974.3 years
1266618172.38
S200219ac
BBH (96%), Terrestrial (4%)
1266140673.19Feb. 19, 2020
09:44:15 UTC
GCN Circulars
Notices | VOE
0.000000013303692537421 per 2.3819 years
1266140673.19
S200213t
BNS (63%), Terrestrial (37%)
1265602258.33Feb. 13, 2020
04:10:40 UTC
GCN Circulars
Notices | VOE
0.000000017669381170071 per 1.7934 years
1265602258.33
S200208q
BBH (99%)
1265202095.99Feb. 8, 2020
13:01:17 UTC
GCN Circulars
Notices | VOE
0.000000002517570000001 per 12.587 years
1265202095.99
S200129m
BBH (>99%)
1264316116.44Jan. 29, 2020
06:54:58 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 4.7313e+23 years
1264316116.44
S200128d
BBH (97%), Terrestrial (3%)
1264213229.90Jan. 28, 2020
02:20:11 UTC
GCN Circulars
Notices | VOE
0.000000016471238379671 per 1.9238 years
1264213229.90
S200116ah
NSBH (>99%)
1263211020.17Jan. 16, 2020
11:56:42 UTC
GCN Circulars
Notices | VOE
0.000000000002028965971 per 15618 years
RETRACTED
1263211020.17
S200115j
MassGap (>99%)
1263097407.75Jan. 15, 2020
04:23:09 UTC
GCN Circulars
Notices | VOE
0.000000000020943579341 per 1513 years
An additional sky map, LALInference.fits.gz,1 , was uploaded to GraceDB on January 20. However, the preferred sky map is still LALInference.fits.gz,0 , which was uploaded on January 17 and announced in a GCN Notice and GCN Circular 26807. LALInference.fits.gz,1 is from an 'online' parameter estimation run that was started automatically on January 15 and completed on January 20. While the results are basically consistent, it used some data containing low-frequency noise, and thus the LVC parameter estimation team considers the 'offline' PE analysis results LALInference.fits.gz,0 (which was set up to avoid that low-frequency noise) to be more reliable.
1263097407.75
S200114f
1263002916.24Jan. 14, 2020
02:08:18 UTC
GCN Circulars
Notices | VOE
No public skymap image found.
0.000000001226420000001 per 25.838 years
1263002916.24
S200112r
BBH (>99%)
1262879936.09Jan. 12, 2020
15:58:38 UTC
GCN Circulars
Notices | VOE
0.000000000012829846251 per 2469.9 years
1262879936.09
S200108v
BBH (>99%)
1262512856.56Jan. 8, 2020
10:00:38 UTC
GCN Circulars
Notices | VOE
0.000000000000266889921 per 1.1873e+05 years
RETRACTED
1262512856.56
S200106av
Terrestrial (>99%)
1262370881.58Jan. 6, 2020
18:34:23 UTC
GCN Circulars
Notices | VOE
0.000000031276819356661 per 1.0131 years
RETRACTED
1262370881.58
S200106au
Terrestrial (93%), NSBH (7%)
1262370887.29Jan. 6, 2020
18:34:29 UTC
GCN Circulars
Notices | VOE
0.000000003660500791371 per 8.6568 years
RETRACTED
1262370887.29
S200105ae
Terrestrial (97%), NSBH (3%)
1262276684.06Jan. 5, 2020
16:24:26 UTC
GCN Circulars
Notices | VOE
0.0000007671711717426724.21 per year
1262276684.06
S191225aq
Terrestrial (61%), MassGap (39%)
1261346253.87Dec. 25, 2019
21:57:15 UTC
GCN Circulars
Notices | VOE
0.000000012670183368981 per 2.501 years
RETRACTED
1261346253.87
S191222n
BBH (>99%)
1261020955.12Dec. 22, 2019
03:35:37 UTC
GCN Circulars
Notices | VOE
0.000000000006459095211 per 4906 years
1261020955.12
S191220af
BNS (>99%)
1260879872.69Dec. 20, 2019
12:24:14 UTC
GCN Circulars
Notices | VOE
0.000000000396317530991 per 79.956 years
RETRACTED
1260879872.69
S191216ap
BBH (99%)
1260567236.47Dec. 16, 2019
21:33:38 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 2.8035e+15 years
1260567236.47
S191215w
BBH (>99%)
1260484270.33Dec. 15, 2019
22:30:52 UTC
GCN Circulars
Notices | VOE
0.000000001006461740511 per 31.485 years
1260484270.33
S191213ai
NSBH (85%), Terrestrial (15%)
1260287963.90Dec. 13, 2019
15:59:05 UTC
GCN Circulars
Notices | VOE
0.000000020035273965861 per 1.5816 years
RETRACTED
1260287963.90
S191213g
BNS (77%), Terrestrial (23%)
1260246866.14Dec. 13, 2019
04:34:08 UTC
GCN Circulars
Notices | VOE
0.000000035482395919001.1197 per year
1260246866.14
S191212q
Terrestrial (51%), NSBH (49%)
1260174466.64Dec. 12, 2019
08:27:28 UTC
GCN Circulars
Notices | VOE
0.000000033687030000001.0631 per year
RETRACTED
1260174466.64
S191205ah
NSBH (93%), Terrestrial (7%)
1259617946.57Dec. 5, 2019
21:52:08 UTC
GCN Circulars
Notices | VOE
0.000000012483929381971 per 2.5383 years
1259617946.57
S191204r
BBH (>99%)
1259514944.09Dec. 4, 2019
17:15:26 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 1.0324e+17 years
1259514944.09
S191129u
BBH (>99%)
1259070047.20Nov. 29, 2019
13:40:29 UTC
GCN Circulars
Notices | VOE
0.000000000000000000001 per 1.1958e+27 years
1259070047.20
S191124be
MassGap (93%), Terrestrial (7%)
1258624776.10Nov. 24, 2019
09:59:18 UTC
GCN Circulars
Notices | VOE
0.000000001678100000001 per 18.883 years
RETRACTED
1258624776.10
S191120at
MassGap (83%), Terrestrial (17%)
1258315735.32Nov. 20, 2019
20:08:37 UTC
GCN Circulars
Notices | VOE
0.000000006109056431011 per 5.1871 years
RETRACTED
1258315735.32
S191120aj
NSBH (61%), Terrestrial (39%)
1258302232.44Nov. 20, 2019
16:23:34 UTC
GCN Circulars
Notices | VOE
0.000000028601210000001 per 1.1079 years
RETRACTED
1258302232.44
S191117j
NSBH (>99%)
1258006120.45Nov. 17, 2019
06:08:22 UTC
GCN Circulars
Notices | VOE
0.000000000000000001111 per 2.8433e+10 years
RETRACTED
1258006120.45
S191110af
1257462422.18Nov. 10, 2019
23:06:44 UTC
GCN Circulars
Notices | VOE
No public skymap image found.
0.000000002498820000001 per 12.681 years
RETRACTED
1257462422.18
S191110x
MassGap (>99%)
1257444540.21Nov. 10, 2019
18:08:42 UTC
GCN Circulars
Notices | VOE
0.000000000029295316641 per 1081.7 years
RETRACTED
1257444540.21
S191109d
BBH (>99%)
1257296855.22Nov. 9, 2019
01:07:17 UTC
GCN Circulars
Notices | VOE
0.000000000000153677021 per 2.062e+05 years
1257296855.22
S191105e
BBH (95%), Terrestrial (5%)
1256999739.93Nov. 5, 2019
14:35:21 UTC
GCN Circulars
Notices | VOE
0.000000022828709059841 per 1.3881 years
1256999739.93
S190930t
NSBH (74%), Terrestrial (26%)
1253889265.69Sept. 30, 2019
14:34:07 UTC
GCN Circulars
Notices | VOE
0.000000015430623838181 per 2.0536 years
1253889265.69
S190930s
MassGap (95%), Terrestrial (5%)
1253885759.25Sept. 30, 2019
13:35:41 UTC
GCN Circulars
Notices | VOE
0.000000003008303654661 per 10.534 years
1253885759.25
S190928c
1253671923.36Sept. 28, 2019
02:11:45 UTC
GCN Circulars
Notices | VOE
No public skymap image found.
0.000000006728960000001 per 4.7092 years
RETRACTED
1253671923.36
S190924h
MassGap (>99%)
1253326744.85Sept. 24, 2019
02:18:46 UTC
GCN Circulars
Notices | VOE
0.000000000000000000891 per 3.5493e+10 years
1253326744.85
S190923y
NSBH (68%), Terrestrial (32%)
1253278577.65Sept. 23, 2019
12:55:59 UTC
GCN Circulars
Notices | VOE
0.000000047829942217881.5094 per year
1253278577.65
S190915ak
BBH (99%)
1252627040.69Sept. 15, 2019
23:57:02 UTC
GCN Circulars
Notices | VOE
0.000000000973523002121 per 32.55 years
1252627040.69
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
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
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
| Event ID | Possible Source (Probability) | UTC | GCN | Location | FAR | Comments | GPS |
|---|---|---|---|---|---|---|---|
| S230603aa | Terrestrial (97%), NSBH (3%) |
1369812903.08June 3, 2023 07:34:45 UTC |
GCN Circular Query Notices | VOE |
|
0.0000011545704594978836.435 per year | 1369812903.08 | |
| S230602ap |
1369766434.68June 2, 2023 18:40:16 UTC |
GCN Circular Query Notices | VOE |
No public skymap image found. | 0.0000014813500000000046.748 per year | Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue. |
1369766434.68 | |
| S230601bf | BBH (>99%) |
1369694512.10June 1, 2023 22:41:34 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000000001713571 per 1.8492e+07 years | 1369694512.10 | |
| S230531f |
1369527703.21May 31, 2023 00:21:25 UTC |
GCN Circular Query Notices | VOE |
No public skymap image found. | 0.0000008539795619003826.95 per year | Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue. |
1369527703.21 | |
| S230529ay | HasMassGap (69%), NSBH (62%), BNS (31%), Terrestrial (7%) |
1369419318.75May 29, 2023 18:15:00 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000197512118501 per 160.44 years | 1369419318.75 | |
| S230529p | Terrestrial (97%), HasMassGap (11%), NSBH (2%) |
1369391282.70May 29, 2023 10:27:44 UTC |
GCN Circular Query Notices | VOE |
|
0.0000006287578496854019.842 per year | 1369391282.70 | |
| S230528bt | BBH (88%), Terrestrial (12%), HasMassGap (4%) |
1369320707.73May 28, 2023 14:51:29 UTC |
GCN Circular Query Notices | VOE |
|
0.000000287234107830629.0644 per year | 1369320707.73 | |
| S230528ay |
1369307471.67May 28, 2023 11:10:53 UTC |
GCN Circular Query Notices | VOE |
No public skymap image found. | 0.0000007032685984134222.193 per year | Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue. |
1369307471.67 | |
| S230528a | HasMassGap (97%), NSBH (44%), Terrestrial (36%), BNS (20%) |
1369276052.80May 28, 2023 02:27:14 UTC |
GCN Circular Query Notices | VOE |
|
0.000000303883012975359.5898 per year | Manually removed HIGH_PROFILE label, which was initially applied to this Low Significance candidate due to software issue. |
1369276052.80 |
| S230527ch |
1369246246.68May 27, 2023 18:10:28 UTC |
GCN Circular Query Notices | VOE |
No public skymap image found. | 0.0000025373400000000080.072 per year | Manually removed HIGH_PROFILE label which was initially applied to this Low Significance candidate due to software issue. |
1369246246.68 | |
| S230527bv | BBH (88%), Terrestrial (12%) |
1369243547.82May 27, 2023 17:25:29 UTC |
GCN Circular Query Notices | VOE |
|
0.000000207166848113506.5377 per year | 1369243547.82 | |
| S230525a | BBH (72%), Terrestrial (28%) |
1369017515.86May 25, 2023 02:38:17 UTC |
GCN Circular Query Notices | VOE |
|
0.0000007513615903997723.711 per year | 1369017515.86 | |
| S230524x | BNS (75%), Terrestrial (25%) |
1368994979.84May 24, 2023 20:22:41 UTC |
GCN Circular Query Notices | VOE |
|
0.000000072244439059562.2799 per year | RETRACTED | 1368994979.84 |
| Event ID | Possible Source (Probability) | UTC | GCN | Location | FAR | Comments | GPS |
|---|---|---|---|---|---|---|---|
| S230524b | BBH (73%), Terrestrial (27%) |
1368944018.16May 24, 2023 06:13:20 UTC |
GCN Circular Query Notices | VOE |
|
0.0000008255390964696526.052 per year | 1368944018.16 | |
| S230522n | BBH (99%) |
1368804651.39May 22, 2023 15:30:33 UTC |
GCN Circular Query Notices | VOE |
|
0.000000006479128493831 per 4.8908 years | 1368804651.39 | |
| S230522a | BBH (>99%) |
1368783503.14May 22, 2023 09:38:05 UTC |
GCN Circular Query Notices | VOE |
|
0.000000010350851291801 per 3.0614 years | 1368783503.14 | |
| S230521k | Terrestrial (60%), BNS (25%), NSBH (14%) |
1368682261.07May 21, 2023 05:30:43 UTC |
GCN Circular Query Notices | VOE |
|
0.0000024207631668105076.393 per year | 1368682261.07 | |
| S230520ae | BBH (>99%) |
1368658140.57May 20, 2023 22:48:42 UTC |
GCN Circular Query Notices | VOE |
|
0.000000003060602000001 per 10.354 years | 1368658140.57 | |
| S230518h | NSBH (86%), Terrestrial (10%), BBH (4%) |
1368449966.17May 18, 2023 12:59:08 UTC |
GCN Circular Query Notices | VOE |
|
0.000000000321826135211 per 98.463 years | 1368449966.17 |
| Event ID | Possible Source (Probability) | UTC | GCN | Location | FAR | Comments | GPS |
|---|---|---|---|---|---|---|---|
| S200316bj | MassGap (>99%) |
1268431094.16March 16, 2020 21:57:56 UTC |
GCN Circulars Notices | VOE |
|
0.000000000070979279011 per 446.44 years | 1268431094.16 | |
| S200311bg | BBH (>99%) |
1267963151.40March 11, 2020 11:58:53 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000000001 per 3.5448e+17 years | 1267963151.40 | |
| S200308e | NSBH (83%), Terrestrial (17%) |
1267665585.60March 8, 2020 01:19:27 UTC |
GCN Circulars Notices | VOE |
|
0.000000003618608000001 per 8.757 years | RETRACTED | 1267665585.60 |
| S200303ba | BBH (86%), Terrestrial (14%) |
1267272966.71March 3, 2020 12:15:48 UTC |
GCN Circulars Notices | VOE |
|
0.000000013156162340731 per 2.4086 years | RETRACTED | 1267272966.71 |
| S200302c | BBH (89%), Terrestrial (11%) |
1267149509.52March 2, 2020 01:58:11 UTC |
GCN Circulars Notices | VOE |
|
0.000000009349090689401 per 3.3894 years | 1267149509.52 | |
| S200225q | BBH (96%), Terrestrial (4%) |
1266645879.40Feb. 25, 2020 06:04:21 UTC |
GCN Circulars Notices | VOE |
|
0.000000009185882942511 per 3.4497 years | 1266645879.40 | |
| S200224ca | BBH (>99%) |
1266618172.38Feb. 24, 2020 22:22:34 UTC |
GCN Circulars Notices | VOE |
|
0.000000000016050019531 per 1974.3 years | 1266618172.38 | |
| S200219ac | BBH (96%), Terrestrial (4%) |
1266140673.19Feb. 19, 2020 09:44:15 UTC |
GCN Circulars Notices | VOE |
|
0.000000013303692537421 per 2.3819 years | 1266140673.19 | |
| S200213t | BNS (63%), Terrestrial (37%) |
1265602258.33Feb. 13, 2020 04:10:40 UTC |
GCN Circulars Notices | VOE |
|
0.000000017669381170071 per 1.7934 years | 1265602258.33 | |
| S200208q | BBH (99%) |
1265202095.99Feb. 8, 2020 13:01:17 UTC |
GCN Circulars Notices | VOE |
|
0.000000002517570000001 per 12.587 years | 1265202095.99 | |
| S200129m | BBH (>99%) |
1264316116.44Jan. 29, 2020 06:54:58 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000000001 per 4.7313e+23 years | 1264316116.44 | |
| S200128d | BBH (97%), Terrestrial (3%) |
1264213229.90Jan. 28, 2020 02:20:11 UTC |
GCN Circulars Notices | VOE |
|
0.000000016471238379671 per 1.9238 years | 1264213229.90 | |
| S200116ah | NSBH (>99%) |
1263211020.17Jan. 16, 2020 11:56:42 UTC |
GCN Circulars Notices | VOE |
|
0.000000000002028965971 per 15618 years | RETRACTED | 1263211020.17 |
| S200115j | MassGap (>99%) |
1263097407.75Jan. 15, 2020 04:23:09 UTC |
GCN Circulars Notices | VOE |
|
0.000000000020943579341 per 1513 years | An additional sky map, LALInference.fits.gz,1 , was uploaded to GraceDB on January 20. However, the preferred sky map is still LALInference.fits.gz,0 , which was uploaded on January 17 and announced in a GCN Notice and GCN Circular 26807. LALInference.fits.gz,1 is from an 'online' parameter estimation run that was started automatically on January 15 and completed on January 20. While the results are basically consistent, it used some data containing low-frequency noise, and thus the LVC parameter estimation team considers the 'offline' PE analysis results LALInference.fits.gz,0 (which was set up to avoid that low-frequency noise) to be more reliable. | 1263097407.75 |
| S200114f |
1263002916.24Jan. 14, 2020 02:08:18 UTC |
GCN Circulars Notices | VOE |
No public skymap image found. | 0.000000001226420000001 per 25.838 years | 1263002916.24 | ||
| S200112r | BBH (>99%) |
1262879936.09Jan. 12, 2020 15:58:38 UTC |
GCN Circulars Notices | VOE |
|
0.000000000012829846251 per 2469.9 years | 1262879936.09 | |
| S200108v | BBH (>99%) |
1262512856.56Jan. 8, 2020 10:00:38 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000266889921 per 1.1873e+05 years | RETRACTED | 1262512856.56 |
| S200106av | Terrestrial (>99%) |
1262370881.58Jan. 6, 2020 18:34:23 UTC |
GCN Circulars Notices | VOE |
|
0.000000031276819356661 per 1.0131 years | RETRACTED | 1262370881.58 |
| S200106au | Terrestrial (93%), NSBH (7%) |
1262370887.29Jan. 6, 2020 18:34:29 UTC |
GCN Circulars Notices | VOE |
|
0.000000003660500791371 per 8.6568 years | RETRACTED | 1262370887.29 |
| S200105ae | Terrestrial (97%), NSBH (3%) |
1262276684.06Jan. 5, 2020 16:24:26 UTC |
GCN Circulars Notices | VOE |
|
0.0000007671711717426724.21 per year | 1262276684.06 | |
| S191225aq | Terrestrial (61%), MassGap (39%) |
1261346253.87Dec. 25, 2019 21:57:15 UTC |
GCN Circulars Notices | VOE |
|
0.000000012670183368981 per 2.501 years | RETRACTED | 1261346253.87 |
| S191222n | BBH (>99%) |
1261020955.12Dec. 22, 2019 03:35:37 UTC |
GCN Circulars Notices | VOE |
|
0.000000000006459095211 per 4906 years | 1261020955.12 | |
| S191220af | BNS (>99%) |
1260879872.69Dec. 20, 2019 12:24:14 UTC |
GCN Circulars Notices | VOE |
|
0.000000000396317530991 per 79.956 years | RETRACTED | 1260879872.69 |
| S191216ap | BBH (99%) |
1260567236.47Dec. 16, 2019 21:33:38 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000000001 per 2.8035e+15 years | 1260567236.47 | |
| S191215w | BBH (>99%) |
1260484270.33Dec. 15, 2019 22:30:52 UTC |
GCN Circulars Notices | VOE |
|
0.000000001006461740511 per 31.485 years | 1260484270.33 | |
| S191213ai | NSBH (85%), Terrestrial (15%) |
1260287963.90Dec. 13, 2019 15:59:05 UTC |
GCN Circulars Notices | VOE |
|
0.000000020035273965861 per 1.5816 years | RETRACTED | 1260287963.90 |
| S191213g | BNS (77%), Terrestrial (23%) |
1260246866.14Dec. 13, 2019 04:34:08 UTC |
GCN Circulars Notices | VOE |
|
0.000000035482395919001.1197 per year | 1260246866.14 | |
| S191212q | Terrestrial (51%), NSBH (49%) |
1260174466.64Dec. 12, 2019 08:27:28 UTC |
GCN Circulars Notices | VOE |
|
0.000000033687030000001.0631 per year | RETRACTED | 1260174466.64 |
| S191205ah | NSBH (93%), Terrestrial (7%) |
1259617946.57Dec. 5, 2019 21:52:08 UTC |
GCN Circulars Notices | VOE |
|
0.000000012483929381971 per 2.5383 years | 1259617946.57 | |
| S191204r | BBH (>99%) |
1259514944.09Dec. 4, 2019 17:15:26 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000000001 per 1.0324e+17 years | 1259514944.09 | |
| S191129u | BBH (>99%) |
1259070047.20Nov. 29, 2019 13:40:29 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000000001 per 1.1958e+27 years | 1259070047.20 | |
| S191124be | MassGap (93%), Terrestrial (7%) |
1258624776.10Nov. 24, 2019 09:59:18 UTC |
GCN Circulars Notices | VOE |
|
0.000000001678100000001 per 18.883 years | RETRACTED | 1258624776.10 |
| S191120at | MassGap (83%), Terrestrial (17%) |
1258315735.32Nov. 20, 2019 20:08:37 UTC |
GCN Circulars Notices | VOE |
|
0.000000006109056431011 per 5.1871 years | RETRACTED | 1258315735.32 |
| S191120aj | NSBH (61%), Terrestrial (39%) |
1258302232.44Nov. 20, 2019 16:23:34 UTC |
GCN Circulars Notices | VOE |
|
0.000000028601210000001 per 1.1079 years | RETRACTED | 1258302232.44 |
| S191117j | NSBH (>99%) |
1258006120.45Nov. 17, 2019 06:08:22 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000001111 per 2.8433e+10 years | RETRACTED | 1258006120.45 |
| S191110af |
1257462422.18Nov. 10, 2019 23:06:44 UTC |
GCN Circulars Notices | VOE |
No public skymap image found. | 0.000000002498820000001 per 12.681 years | RETRACTED | 1257462422.18 | |
| S191110x | MassGap (>99%) |
1257444540.21Nov. 10, 2019 18:08:42 UTC |
GCN Circulars Notices | VOE |
|
0.000000000029295316641 per 1081.7 years | RETRACTED | 1257444540.21 |
| S191109d | BBH (>99%) |
1257296855.22Nov. 9, 2019 01:07:17 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000153677021 per 2.062e+05 years | 1257296855.22 | |
| S191105e | BBH (95%), Terrestrial (5%) |
1256999739.93Nov. 5, 2019 14:35:21 UTC |
GCN Circulars Notices | VOE |
|
0.000000022828709059841 per 1.3881 years | 1256999739.93 | |
| S190930t | NSBH (74%), Terrestrial (26%) |
1253889265.69Sept. 30, 2019 14:34:07 UTC |
GCN Circulars Notices | VOE |
|
0.000000015430623838181 per 2.0536 years | 1253889265.69 | |
| S190930s | MassGap (95%), Terrestrial (5%) |
1253885759.25Sept. 30, 2019 13:35:41 UTC |
GCN Circulars Notices | VOE |
|
0.000000003008303654661 per 10.534 years | 1253885759.25 | |
| S190928c |
1253671923.36Sept. 28, 2019 02:11:45 UTC |
GCN Circulars Notices | VOE |
No public skymap image found. | 0.000000006728960000001 per 4.7092 years | RETRACTED | 1253671923.36 | |
| S190924h | MassGap (>99%) |
1253326744.85Sept. 24, 2019 02:18:46 UTC |
GCN Circulars Notices | VOE |
|
0.000000000000000000891 per 3.5493e+10 years | 1253326744.85 | |
| S190923y | NSBH (68%), Terrestrial (32%) |
1253278577.65Sept. 23, 2019 12:55:59 UTC |
GCN Circulars Notices | VOE |
|
0.000000047829942217881.5094 per year | 1253278577.65 | |
| S190915ak | BBH (99%) |
1252627040.69Sept. 15, 2019 23:57:02 UTC |
GCN Circulars Notices | VOE |
|
0.000000000973523002121 per 32.55 years | 1252627040.69 | |
| 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 | |
| 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 | |
| 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 |
