List of gravitational wave observations

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Template:Short description

The first measurement of a gravitational wave event

This page contains a list of observed and candidate gravitational wave events.

Origin and nomenclature

Direct observation of gravitational waves, which commenced with the detection of an event by LIGO in 2015,[1] plays a key role in gravitational wave astronomy. LIGO has been involved in all subsequent detections to date, with Virgo joining in August 2017.[2]

Joint observation runs of LIGO and VIRGO, designated "O1, O2, etc." span many months, with months of maintenance and upgrades in-between designed to increase the instruments sensitivity and range. Within these run periods, the instruments are capable of detecting gravitational waves.

The first run, O1, ran from September 12, 2015, to January 19, 2016, and succeeded in its first gravitational wave detection. O2 ran for a greater duration, from November 30, 2016, to August 25, 2017.[3] O3 began on April 1, 2019, which was briefly suspended on September 30, 2019, for maintenance and upgrades, thus O3a. O3b marks resuming of the run and began on November 1, 2019. Due to the COVID-19 pandemic[4] O3 was forced to end prematurely.[5] O4 began on May 24, 2023; initially planned for March, the project needed more time to stabilize the instruments.

The O4 observing run has been extended from one year to 18 months, following plans to make further upgrades for the O5 run.[2][6] Updated observing plans are published on the official website, containing the latest information on these runs.[6] There is a two month commissioning break planned from January to March 2024, after which observations will resume for the remainder of O4.[7]

Gravitational wave events are named starting with the prefix GW, while observations that trigger an event alert but have not (yet) been confirmed are named starting with the prefix S.[8] Six digits then indicate the date of the event, with the two first digits representing the year, the two middle digits the month and two final digits the day of observation. This is similar to the systematic naming for other kinds of astronomical event observations, such as those of gamma-ray bursts.

Probable detections that are not confidently identified as gravitational wave events are designated LVT ("LIGO-Virgo trigger"). Known gravitational wave events come from the merger of two black holes (BH), two neutron stars (NS), or a black hole and a neutron star (BHNS).[9][10] Some objects are in the mass gap between the largest predicted neutron star masses (Tolman–Oppenheimer–Volkoff limit) and the smallest known black holes.

List of gravitational wave events

  • Events from LIGO & Virgo
  • O1 & O2/2015-2017 events
    O1 & O2/2015-2017 events
  • Distance and mass for events up to O4 in 2023
    Distance and mass for events up to O4 in 2023
Confirmed events by distance
bar chart height = 275 width = 550 y tick marks = 10 stack = 1 group 1 = 1 : 1 : 0 : 0 : 0 : 0 : 0 group 2 = 0 : 0 : 2 : 1 : 0 : 0 : 0 group 3 = 0 : 0 : 3 : 4 : 0 : 0 : 0 group 4 = 0 : 0 : 5 : 15 : 25 : 33 : 6 group names = BNS mergers : NS-BH mergers : mass gap : BBH mergers colors = #aadddd : #b0c0c0 : #eebbbb : #888888 x legends = <100 Mpc : 100-200 Mpc : 200-500 Mpc : 500-1000 Mpc : 1-2 Gpc : 2-5 Gpc : 5+ Gpc

}}

Initial objects by mass
bar chart height = 275 width = 750 y tick marks = 10 stack = 1 group 1 = 9 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 group 2 = 0 : 3 : 1 : 3 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 group 3 = 0 : 0 : 0 : 20 : 31 : 43 : 44 : 18 : 6 : 6 : 3 : 4 : 0 : 1 group names = neutron star : mass gap : black hole colors = #aadddd : #eebbbb : #888888 x legends = 1-2 M☉ : 2-3 M☉ : 3-5 M☉ : 5-10 M☉ : 10-20 M☉ : 20-30 M☉ : 30-40 M☉ : 40-50 M☉ : 50-60 M☉ : 60-70 M☉ : 70-80 M☉ : 80-90 M☉ : 90-100 M☉ : 100-110 M☉

}}

Template:Clear

Template:Center

GW event
and time (UTC)Template:Refn 		Date
published 		Location
area[n 1]
(deg2) 		Signal to
Noise Ratio
(SNR) 		Luminosity
distance
(Mpc)[n 2] 		Energy
radiated/c2
(M☉)
[n 3] 		Chirp mass (M☉)
[n 4] 		Effective spinTemplate:Refn Primary Secondary Remnant Notes Ref.
Type Mass (M☉) Type Mass (M☉) Type Mass (M☉) SpinTemplate:Refn
GW150914
09:50:45 		2016-02-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center BH
Template:Refn 		Template:Center BH
Template:Refn 		Template:Center Template:Center Template:Center Template:Center First GW detection;
first BH merger observed 		[11][12][13]
Template:Ill
09:54:43 		2016-06-15 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Formerly candidate LVT151012;
accepted as astrophysical since February 2019 		[14][15][16]
GW151226
03:38:53 		2016-06-15 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [17][18]
GW170104
10:11:58 		2017-06-01 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [19][20]
GW170608
02:01:16 		2017-11-16 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Smallest BH progenitor
masses to date 		[21]
GW170729
18:56:29 		2018-11-30 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Largest progenitor masses until GW190521 [15]
GW170809
08:28:21 		2018-11-30 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [15]
GW170814
10:30:43 		2017-09-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center First announced detection by
three observatories; first polarization measurement 		[22][23]
GW170817
12:41:04 		2017-10-16 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center HMNS-BH
Template:Refn 		≤ 2.8Template:Refn Template:Center First NS merger observed in
GW; first detection of EM counterpart (GRB 170817A; AT 2017gfo); nearest event to date 		[24][25][26]
GW170818
02:25:09 		2018-11-30 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [15]
GW170823
13:13:58 		2018-11-30 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [15]
GW190403_051519
2019-04-03 05:15:19 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190408_181802
2019-04-08 18:18:02 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190408an. [28]
GW190412
2019-04-12
05:30:44 		2020-04-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center First possible observation of a merger of two black holes of very different masses. Originally designated S190412m. [29][30]
GW190413_052954
2019-04-13 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190413_134308
2019-04-13 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190421_213856
2019-04-21 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190421ar. [28]
GW190424_180648
2019-04-24 18:06:48 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190425
2019-04-25
08:18:05 		2020-01-06 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190425z (z:26th trigger|UTC day), this trigger was detected by a single LIGO instrument (of three LVC stations), and is considered by some scientists to have been confirmed as a binary neutron star merger.[31]

It was published in 2020 that a gamma-ray burst was detected (GRB 190425) ~0.5 seconds after the LIGO trigger, lasting 6 seconds and bearing similarities to GRB170817 (such as weakness [most power in sub-100 keV, or soft X-rays) bands], elevated energetic photon background levels [signal exceeding background by less than a factor of 2], and similar differences from other transients classified as short GRBs). Confidence was established for interpretation of a set of peaks through a control interval of only 2 days prior to the LIGO-Livingston trigger in INTEGRAL Electronic anticoincidence, could not be corroborated by other instruments and wasn't initially noted as a significant event. Non-detection in other instruments may be a consequence of an Earth-occulted source as the Fermi telescope attempted follow-up.[32]

[33][34]
GW190426_152155
2019-04-26
15:21:55 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center The primary object, being between 3.4 and 9.6 solar masses, is either a black hole or an object in the mass gap. Originally designated S230426c. [28]
GW190426_190642
2019-04-26
19:06:42 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190503_185404
2019-05-03
18:54:04 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S230503bf. [28]
GW190512_180714
2019-05-12
18:07:14 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S230512at. [28]
GW190513_205428
2019-05-13
20:54:28 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S230513bm. [28]
GW190514_065416
2019-05-14
06:54:16 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190517_055101
2019-05-17
06:54:16 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190517h. [28]
GW190519_153544
2019-05-19
15:35:44 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190519bj. [28]
GW190521
2019-05-21
03:02:29 		2020-09-02 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190521g. Largest progenitor masses to date. [35][36]
GW190521_074359
2019-05-21
07:43:59 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190521r. [28]
GW190527_092055
2019-05-27
09:20:55 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190602_175927
2019-06-02
17:59:27 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190602aq. [28]
GW190620_030421
2019-06-20
03:04:21 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190630_185205
2019-06-30
18:52:05 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190630ag. [28]
GW190701_203306
2019-07-01
20:33:06 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190701ah. [28]
GW190706_222641
2019-07-06
22:26:41 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190706ai. [28]
GW190707_093326
2019-07-07
09:33:26 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190707q. [28]
GW190708_232457
2019-07-08
23:24:57 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190719_215514
2019-07-09
21:55:14 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190720_000836
2019-07-20
00:08:36 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190720a. [28]
GW190725_174728
2019-07-25
17:47:28 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190727_060333
2019-07-27
06:03:33 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190727h. [28]
GW190728_064510
2019-07-28
06:45:10 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190728q. [28]
GW190731_140936
2019-07-31
14:09:36 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190803_022701
2019-08-03
02:27:01 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190805_211137
2019-08-05
21:11:37 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190814 2019-08-14 21:11:18 2020-06-23 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center No optical counterpart was discovered despite an extensive search of the probability region. The mass of the lighter component is estimated to be 2.6 times the mass of the Sun, placing it in the mass gap between neutron stars and black holes.[37] [38][39][40][41][42]
[43][44][45][46]
GW190828_063405
2019-08-28
06:34:05 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190828j. [28]
GW190828_065509
2019-08-28
06:55:09 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S190828l. [28]
GW190909_114149
2019-09-09
11:41:49 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190910_112807
2019-09-10
11:28:07 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190915_235702
2019-09-15
23:57:02 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S230915ak. [28]
GW190916_200658
2019-09-16
20:06:58 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190917_114630
2019-09-17
11:46:30 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190924_021846
2019-09-24
02:18:46 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center The secondary component, being between 3.1 and 6.4 solar masses, is either a black hole or an object in the mass gap. Originally designated S230924h. [28]
GW190925_232845
2019-09-25
23:28:45 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190926_050336
2019-09-26
05:03:36 		2022-05-11 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [27]
GW190929_012149
2019-09-29
01:21:49 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [28]
GW190930_133541
2019-09-30
13:35:41 		2020-10-27 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center The secondary component, being between 4.5 and 9.5 solar masses, is either a black hole or an object in the mass gap. Originally designated S190930s. [28]
GW191103
2019-11-03 01:25:49 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW191105
2019-11-05 14:35:21 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191105e. [47]
GW191109
2019-11-09 01:07:17 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191109d. [47]
GW191113
2019-11-13 07:17:53 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW191126
2019-11-26 11:52:59 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW191127
2019-11-27 05:02:27 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW191129
2019-11-29 13:40:29 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191129u. [47]
GW191204_110529
2019-12-04 11:05:29 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW191204_171526
2019-12-04 17:15:26 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191204r. [47]
GW191215
2019-12-15 22:30:52 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191215w. [47]
GW191216
2019-12-16 21:33:38 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191216ap. [47]
GW191219
2019-12-19 16:31:20 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center The event is unconfirmed due to difficulty accurately modelling the extreme mass ratio. [47]
GW191222
2019-12-22 03:35:37 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S191222n. [47]
GW191230
2019-12-30 18:04:58 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200105
2020-01-05 16:24:26 		2021-06-29 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center First event confirmed to be a black hole and neutron star merger. Originally designated S200105ae. [48][49]
GW200112
2020-01-12 15:58:38 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200112r. [47]
GW200114
2020-01-14 02:08:08 		2022-08-18 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200114f. The event was initially published as an unmodeled gravitational wave burst, and different studies have offered conflicting interpretations. One study suggested it was a nearby high-mass black hole merger with component masses of Template:Val and Template:Val Msun which was poorly modeled because of its high mass.[50] Another study interpreted it as a somewhat smaller black hole merger taking place at the same time as a detector glitch.[51] Both studies conclude the signal is most likely a real event, and the latter model is included in the table. [50][51]
GW200115
2020-01-15 04:23:09 		2021-06-29 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Second event confirmed to be a black hole and neutron star merger. Originally designated S200115j. [48][52]
GW200128
2020-01-28 02:20:11 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200128d. [47]
GW200129
2020-01-29 06:54:58 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200129m. [47]
GW200202
2020-02-02 15:43:12 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200208_130117
2020-02-08 13:01:17 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200208q. [47]
GW200208_222617
2020-02-08 22:26:17 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200209
2020-02-09 08:54:52 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200210
2020-02-10 09:22:54 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center The secondary component, being between 2.41 and 3.30 solar masses, is an object in the mass gap. [47]
GW200216
2020-02-16 22:08:04 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200219
2020-02-19 09:44:15 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200219ac. [47]
GW200220_061928
2020-02-20 06:19:28 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200220_124850
2020-02-20 12:48:50 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200224
2020-02-24 22:22:34 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200224ca. [47]
GW200225
2020-02-25 06:04:21 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200225q. [47]
GW200302
2020-03-02 01:58:11 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200302c. [47]
GW200306
2020-03-06 09:37:14 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200308
2020-03-08 17:36:09 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW200311
2020-03-11 11:58:53 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200311bg. [47]
GW200316
2020-03-16 21:57:56 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S200316bj. [47]
GW200322
2020-03-22 09:11:33 		2021-11-17 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center [47]
GW230529

2023-05-29 18:15:00

2024-04-05 Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Template:Center Originally designated S230529ay. Was detected using only the LIGO Livingston detector. It provides strong support for the primary object to be within the mass gap. [53]
Gravitational Wave Transient Catalog 1. Credit:LIGO Scientific Collaboration and Virgo Collaboration/Georgia Tech/S. Ghonge & K. Jani

Candidate events and marginal detections

There is possible detection of nanohertz waves by observation of the timing of pulsars, but they have not been confirmed at the 5 sigma level of confidence, Template:As of.[54]

Marginal detections from O1 and O2

In addition to well-constrained detections listed above, a number of low-significance detections of possible signals were made by LIGO and Virgo. Their characteristics are listed below, only including detections with a <50% chance of being noise:

Marginal event detections
Candidate
event 		Detection
time (UTC) 		Date
published 		Luminosity
distance
(Mpc)[n 5] 		Detector
[n 6] 		False alarm
rate (year) 		Effective spin Primary Secondary Probability of terrestrial noise Notes Ref
Type Mass (M☉) Type Mass (M☉)
151205 2015-12-05 19:55:25 2019-10-11 Template:Val H,L 0.61 Template:Val Template:Center Template:Val Template:Center Template:Val 0.47 [55]
170121 2017-01-21 21:25:36 2019-04-15 H,L Template:Val Template:Center Template:Val Template:Center <0.01 [56]
170304 2017-03-04 16:37:53 2019-10-11 Template:Val H,L 2.5 Template:Val Template:Center Template:Val Template:Center Template:Val 0.30 [55]
170402 2017-04-02 21:51:50 2019-10-21 H,L 0.32 [57]
170727 2017-07-27 01:04:30 2019-10-11 Template:Val H,L 180 Template:Val Template:Center Template:Val Template:Center Template:Val 0.006 [55]
170817A 2017-08-17 03:02:46 2019-10-21 H,L,V 11.5 Template:Val Template:Center Template:Val Template:Center Template:Val 0.14 [57]

Observation candidates from O3/2019

From observation run O3/2019 on, observations are published as Open Public Alerts to facilitate multi-messenger observations of events.[58][59][60] Candidate event records can be directly accessed at the Gravitational-Wave Candidate Event Database (GraceDB).[61] On 1 April 2019, the start of the third observation run was announced with a circular published in the public alerts tracker.[62] The first O3/2019 binary black hole detection alert was broadcast on 8 April 2019. A significant percentage of O3 candidate events detected by LIGO are accompanied by corresponding triggers at Virgo.

False alarm rates are mixed, with more than half of events assigned false alarm rates greater than 1 per 20 years, contingent on presence of glitches around signal, foreground electromagnetic instability, seismic activity, and operational status of any one of the three LIGO-Virgo instruments. For instance, events S190421ar and S190425z weren't detected by Virgo and LIGO's Hanford site, respectively.

The LIGO/Virgo collaboration took a short break from observing during the month of October 2019 to improve performance and prepare for future plans, with no signals detected in that month as a result.[63]

The Kamioka Gravitational Wave Detector (KAGRA) in Japan became operational on 25 February 2020,[64] likely improving the detection and localization of future gravitational wave signals.[65] However, KAGRA does not report their signals in real-time on GraceDB as LIGO and Virgo do, so the results of their observation run will likely not be published until the end of O3.

The LIGO-Virgo collaboration ended the O3 run early on March 27, 2020, due to health concerns from the COVID-19 pandemic.[5][66]

Candidate detections from O3 by month
bar chart height = 300 width = 600 stack = 1 group 1 = 1 : 0 : 0 : 0 : 0 : 2 : 0 : 0 : 1 : 0 : 1 : 0 group 2 = 0 : 0 : 0 : 0 : 1 : 3 : 0 : 0 : 1 : 0 : 0 : 0 group 3 = 0 : 0 : 0 : 1 : 0 : 2 : 0 : 0 : 0 : 0 : 0 : 1 group 4 = 3 : 7 : 2 : 5 : 2 : 2 : 0 : 3 : 4 : 3 : 4 : 2 group 5 = 1 : 1 : 0 : 1 : 0 : 0 : 0 : 0 : 0 : 1 : 0 : 0 group 6 = 1 : 2 : 0 : 0 : 4 : 1 : 0 : 6 : 4 : 4 : 0 : 2 group 7 = 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 1 : 0 : 0 group names = BNS mergers : NS-BH mergers : mass gap : BBH mergers : terrestrial noise : false positives : unidentified colors = #aadddd : #b0c0c0 : #eebbbb : #888888 : #ffeebb : #ffdddd : #ffaaff x legends = 19/04 : 19/05 : 19/06 : 19/07 : 19/08 : 19/09 : 19/10 : 19/11 : 19/12 : 20/01 : 20/02 : 20/03

}}

O3 detections by distance
bar chart height = 275 float = right width = 550 y tick marks = 10 stack = 1 group 1 = 0 : 1 : 4 : 0 : 0 : 0 : 0 group 2 = 0 : 1 : 3 : 1 : 0 : 0 : 0 group 3 = 0 : 0 : 1 : 3 : 1 : 0 : 0 group 4 = 0 : 0 : 2 : 10 : 17 : 6 : 1 group names = BNS mergers : NS-BH mergers : mass gap : BBH mergers colors = #aadddd : #b0c0c0 : #eebbbb : #888888 x legends = <100 Mpc : 100-200 Mpc : 200-500 Mpc : 500-1000 Mpc : 1-2 Gpc : 2-5 Gpc : 5+ Gpc

}}

Template:Clear Template:Center

GW event Detection
time (UTC) 		Location
area[n 7]
(deg2) 		Luminosity
distance
(Mpc)[n 8] 		Detector
[n 9] 		False alarm
Rate (Hz) 		False alarm
chance in O3[n 10] 		Classification Notes Ref
NS / NS
[n 11] 		NS / BH
[n 12] 		BH / BH
[n 13] 		Mass gap
[n 14] 		Terrestrial
[n 15]
S190901ap 2019-09-01
23:31:01 		Template:Center Template:Center L,V Template:Sort 0.181 0.861 0.0 0.0 0.0 0.139 [67]
S190910d 2019-09-10
01:26:19 		Template:Center Template:Center H,L Template:Sort 0.100 0.0 0.976 0.0 0.0 0.024 [68]
S190910h 2019-09-10
08:29:58 		Template:Center Template:Center L Template:Sort 0.642 0.612 0.0 0.0 0.0 0.388 Detected by only the Livingston detector, resulting in a bad sky localization. [69]
S190923y 2019-09-23 12:55:59 Template:Center Template:Center H,L Template:Sort 0.746 0.0 0.677 0.0 0.0 0.322 [70]
S190930t 2019-09-30 14:34:07 Template:Center Template:Center L Template:Sort 0.348 0.0 0.743 0.0 0.0 0.257 Detected by only the Livingston detector, resulting in a bad sky localization; last detection of the O3a run. [71]
S191205ah 2019-12-05 21:52:08 Template:Center Template:Center H,L,V Template:Sort 0.290 0.0 0.932 0.0 0.0 0.068 [72]
S191213g 2019-12-13 04:34:08 Template:Center Template:Center H,L,V Template:Sort 0.631 0.768 0.0 0.0 0.0 0.232 [73]
S200213t 2020-02-13 04:10:40 Template:Center Template:Center H,L,V Template:Sort 0.401 0.629 0.0 0.0 0.0 0.371 [74]

Observation candidates from O4/2023

On 15 June 2022, LIGO announced to start the O4 observing run in March 2023.[75] As the date got closer, engineering challenges delayed the observing run to May 2023.[76] An engineering run to assess the sensitivity of LIGO, Virgo, and KAGRA began in April, with the Hanford detector's first operations beginning on April 29,[77] and the Livingston and Virgo detectors' first operations beginning on May 5.[78]

On March 7, 2023, a gamma-ray burst compatible with a neutron star merger was detected by the Fermi telescope and named GRB 230307A. The burst, identified as being from a host galaxy approximately 296 Mpc away, would likely have only been marginally detected at best by LIGO if it had been operating at the time, as the detectors would only later achieve a sensitivity of 160 Mpc for neutron star mergers by O4's beginning, 3 months later.

Near the end of the engineering run on 15 May 2023, LIGO announced that O4 would be beginning on 24 May 2023, running for 20 months with up to 2 months of maintenance. The LIGO detectors initially failed to achieve the hoped for 160-190 Mpc sensitivity for neutron star mergers, but did achieve an improved 130-150 Mpc sensitivity over O3's 100-140 Mpc, later improving to nearly 160 Mpc for both detectors by late 2023. Virgo was found to have both a damaged mirror and other new, unknown noise sources, limiting its sensitivity to just 31-35 Mpc (similar to its performance during O2 in 2017, and lower than O3's 40-50 Mpc.) As a result, Virgo spent most of 2023 in commissioning, with a deadline of March 2024 to improve its sensitivity before joining O4. KAGRA achieved its planned 1 Mpc sensitivity before returning to commissioning in July, with plans to rejoin at an improved 10 Mpc sensitivity by early 2024. However, the Template:M7.5 2024 Noto earthquake occurred on 1 January 2024 only Template:Convert from KAGRA, damaging the detector's sensitive instruments and delaying its development by at least several months.

On 18 May 2023, near the end of the engineering run and shortly before O4 proper, the first candidate gravitational wave event was detected. Four more were detected before the official beginning of the run. In October, LIGO announced a planned pause between January and March 2024, for a mid-run commissioning break intended to reduce noise and improve the uptime of the detectors.

The O4b run began in April 2024 with the addition of the Virgo detector at a sensitivity of 55 Mpc. The Livingston detector achieved an increased sensitivity of 170-175 Mpc, while the Hanford detector maintained its pre-break sensitivity of 155-160 Mpc. Due to a variety of factors including delays in technologies required for O5, the decision was made in June 2024 to extend O4 by several months to June 2025, with O5 expected to begin in late 2027 or early 2028.

Candidate detections from O4 by month[n 16]
bar chart height = 300 width = 700 stack = 1 group 1 = 0 : 1 : 0 : 0 : 0 : 1 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 group 2 = 1 : 1 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 1 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 group 3 = 1 : 0 : 0 : 1 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 1 : 0 : 0 : 1 group 4 = 7 : 15 : 17 : 14 : 14 : 12 : 15 : 8 : 4 : 0 : 0 : 8 : 20 : 16 : 4 : 5 : 25 : 8 : 22 : 11 : 16 : 14 group 5 = 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 1 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 : 0 group names = BNS mergers : NS-BH mergers : mass gap : BBH mergers : unidentified colors = #aadddd : #b0c0c0  : #eebbbb : #888888 : #ffaaff x legends = 23/05 : 06 : 07 : 08 : 09 : 10 : 11 : 12 : 24/01 : 02 : 03 : 04 : 05 : 06 : 07 : 08 : 09 : 10 : 11 : 12 : 25/01 : 02

}}

O4 detections by distance[n 16]
bar chart height = 275 float = right width = 550 y tick marks = 10 stack = 1 group 1 = 0 : 0 : 2 : 0 : 0 : 0 : 0 : 0 group 2 = 0 : 1 : 2 : 0 : 0 : 0 : 0 : 0 group 3 = 0 : 0 : 3 : 2 : 0 : 0 : 0 : 0 group 4 = 0 : 2 : 7 : 21 : 62 : 112 : 41 : 10 group names = BNS mergers : NS-BH mergers : mass gap : BBH mergers colors = #aadddd : #b0c0c0 : #eebbbb : #888888 x legends = <100 Mpc : 100-200 Mpc : 200-500 Mpc : 500-1000 Mpc : 1-2 Gpc : 2-5 Gpc : 5-10 Gpc : 10+ Gpc

}}

Template:Clear Template:Center

GW event  Detection
time (UTC) 		Location
area[n 17]
(deg2) 		Luminosity
distance
(Mpc)[n 18] 		Detector
[n 19] 		False Alarm
Rate (Hz) 		False Alarm
chance in O4[n 20]
[n 16] 		Classification Notes Ref
NS / NS
[n 21] 		NS / BH
[n 22] 		BH / BH
[n 23] 		Mass gap
[n 24] 		Terrestrial
[n 25]
S230518h 2023-05-18
12:59:07 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.864 0.037 0.0 0.099 Detected during the engineering phase, before the official start of O4. [79]
S230520ae 2023-05-20
22:48:41 		Template:Center Template:Center H,L Template:Sort 0.161 0.0 0.0 Template:Sort 0.0 1.4e−7 [80]
S230522a 2023-05-22
09:38:04 		Template:Center Template:Center L Template:Sort 0.448 0.0 0.0 0.99973 0.00071 0.00027 [81]
S230522n 2023-05-22
15:30:32 		Template:Center Template:Center L Template:Sort 0.311 0.0 0.0 0.993 0.0041 0.0069 [82]
S230601bf 2023-06-01
22:41:34 		Template:Center Template:Center H,L Template:Sort 9.6 10−8 0.0 0.0 Template:Sort 0.0022 6.4e−9 [83]
S230605o 2023-06-05
06:53:43 		Template:Center Template:Center H,L Template:Sort 0.229 0.0 0.0 0.988 0.0 0.012 [84]
S230606d 2023-06-06
00:43:05 		Template:Center Template:Center H,L Template:Sort 0.481 0.0 0.0 0.99928 0.0 0.00072 [85]
S230608as 2023-06-08
20:50:47 		Template:Center Template:Center H,L Template:Sort 0.0078 0.0 0.0 0.99981 0.0 0.00019 [86]
S230609u 2023-06-09
06:49:58 		Template:Center Template:Center H,L Template:Sort 0.438 0.0 0.0 0.961 0.0 0.038 [87]
S230624av 2023-06-24
11:31:03 		Template:Center Template:Center H,L Template:Sort 0.526 0.0 0.0 0.953 0.0 0.047 [88]
S230627c 2023-06-27
01:53:37 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.365 0.354 0.251 0.030 [89]
S230628ax 2023-06-28
23:12:00 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 Template:Sort 0.0 2.4e−5 [90]
S230630am 2023-06-30
12:58:06 		Template:Center Template:Center H,L Template:Sort 0.750 0.0 0.0 0.941 0.042 0.017 [91]
S230630bq 2023-06-30
23:45:32 		Template:Center Template:Center H,L Template:Sort 0.358 0.0 0.00076 0.890 0.079 0.031 [92]
S230702an 2023-07-02
18:54:53 		Template:Center Template:Center H,L Template:Sort 8.8 10−5 0.0 0.0 Template:Sort 0.0 2.8e−5 [93]
S230704f 2023-07-04
02:12:11 		Template:Center Template:Center H,L Template:Sort 0.149 0.0 0.0 0.997 0.0 0.0026 [94]
S230706ah 2023-07-06
10:43:33 		Template:Center Template:Center H,L Template:Sort 0.914 0.0 0.0 0.939 0.035 0.027 [95]
S230707ai 2023-07-07
12:40:47 		Template:Center Template:Center H,L Template:Sort 0.546 0.0 0.0 0.951 0.0 0.049 [96]
S230708t 2023-07-08
05:37:05 		Template:Center Template:Center H,L Template:Sort 0.917 0.0 0.0 0.973 0.0041 0.027 [97]
S230708z 2023-07-08
07:18:59 		Template:Center Template:Center H,L Template:Sort 0.982 0.0 0.0 0.954 0.0041 0.046 [98]
S230708cf 2023-07-08
23:09:35 		Template:Center Template:Center H,L Template:Sort 0.590 0.0 0.0 0.989 0.0 0.011 [99]
S230709bi 2023-07-09
12:27:27 		Template:Center Template:Center H,L Template:Sort 0.161 0.0 0.0 0.997 0.0 0.0028 [100]
S230723ac 2023-07-23
10:18:23 		Template:Center Template:Center H,L Template:Sort 0.953 0.0 0.0 0.867 0.0 0.133 [101]
S230726a 2023-07-26
00:29:40 		Template:Center Template:Center L Template:Sort 2.2 10−6 0.0 0.0 Template:Sort 0.0 1.4e−7 Detected by only the Livingston detector, resulting in a bad sky localization. [102]
S230729z 2023-07-29
08:23:17 		Template:Center Template:Center H,L Template:Sort 0.177 0.0 0.0 0.942 0.055 0.0030 [103]
S230731an 2023-07-31
21:53:07 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.174 0.771 0.053 0.0022 [104]
S230802aq 2023-08-02
11:33:59 		Template:Center Template:Center H Template:Sort 0.722 0.0 0.020 0.289 0.657 0.035 The other component is a black hole. Detected by only the Hanford detector, resulting in a bad sky localization. [105]
S230805x 2023-08-05
03:42:49 		Template:Center Template:Center H,L Template:Sort 0.410 0.0 0.0 0.99975 0.0 0.00025 [106]
S230806ak 2023-08-06
20:40:41 		Template:Center Template:Center H,L Template:Sort 0.156 0.0 0.0 0.997 0.0 0.0026 [107]
S230807f 2023-08-07
20:50:45 		Template:Center Template:Center H,L Template:Sort 0.983 0.0 0.0 0.913 0.041 0.047 [108]
S230811n 2023-08-11
03:21:16 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 Template:Sort 0.0 2.2e−5 [109]
S230814r 2023-08-14
06:19:20 		Template:Center Template:Center H,L Template:Sort 0.937 0.0 0.0 0.932 0.0 0.068 [110]
S230814ah 2023-08-14
23:09:01 		Template:Center Template:Center L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 2.0e−14 Detected by only the Livingston detector, resulting in a bad sky localization. [111]
S230819ax 2023-08-19
17:19:10 		Template:Center Template:Center H,L Template:Sort 0.398 0.0 0.0 0.993 0.0 0.0072 [112]
S230820bq 2023-08-20
21:25:15 		Template:Center Template:Center H,L Template:Sort 0.912 0.0 0.0 0.958 0.0 0.042 [113]
S230822bm 2023-08-22
23:03:37 		Template:Center Template:Center H,L Template:Sort 0.773 0.0 0.0 0.939 0.042 0.019 [114]
S230824r 2023-08-24
03:30:47 		Template:Center Template:Center H,L Template:Sort 0.00094 0.0 0.0 Template:Sort 0.0 2.9e−5 [115]
S230825k 2023-08-25
04:13:34 		Template:Center Template:Center H,L Template:Sort 0.128 0.0 0.0 0.939 0.059 0.0022 [116]
S230831e 2023-08-31
01:54:14 		Template:Center Template:Center H,L Template:Sort 0.679 0.0 0.0 0.985 0.0073 0.015 [117]
S230904n 2023-09-04
05:10:13 		Template:Center Template:Center H,L Template:Sort 0.121 0.0 0.0007 0.927 0.064 0.009 [118]
S230911ae 2023-09-11
19:53:24 		Template:Center Template:Center H Template:Sort 0.00011 0.0 0.0 Template:Sort 0.0 3.6e−6 Detected by only the Hanford detector, resulting in a bad sky localization. [119]
S230914ak 2023-09-14
11:14:01 		Template:Center Template:Center H,L Template:Sort 0.050 0.0 0.0 0.992 0.0 0.0083 [120]
S230919bj 2023-09-19
21:57:12 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 0.99965 0.0 0.00035 [121]
S230920al 2023-09-20
07:11:24 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 Template:Sort 0.0 1.1e−5 [122]
S230922g 2023-09-22
02:03:44 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [123]
S230922q 2023-09-22
04:06:58 		Template:Center Template:Center H,L Template:Sort 0.021 0.0 0.0 Template:Sort 0.0 2.2e−5 [124]
S230924an 2023-09-24
12:44:53 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 Template:Sort 0.0 1.9e−5 [125]
S230927l 2023-09-27
04:37:29 		Template:Center Template:Center H,L Template:Sort 0.461 0.0 0.0 0.976 0.0 0.024 [126]
S230927be 2023-09-27
15:38:32 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 0.99966 0.0 0.00034 [127]
S230928cb 2023-09-28
21:58:27 		Template:Center Template:Center H,L Template:Sort 0.053 0.0 0.0 Template:Sort 0.0 2.8e−5 [128]
S230930al 2023-09-30
11:07:30 		Template:Center Template:Center H,L Template:Sort 0.346 0.0 0.0 0.994 0.0041 0.0061 [129]
S231001aq 2023-10-01
14:02:20 		Template:Center Template:Center H,L Template:Sort 0.248 0.0 0.0 0.996 0.0044 0.0040 [130]
S231005j 2023-10-05
02:10:30 		Template:Center Template:Center H,L Template:Sort 0.842 0.0 0.0 0.978 0.0 0.022 [131]
S231005ah 2023-10-05
09:15:49 		Template:Center Template:Center H,L Template:Sort 0.111 0.0 0.0 0.998 0.0041 0.0015 [132]
S231008ap 2023-10-08
14:25:21 		Template:Center Template:Center H,L Template:Sort 0.084 0.0 0.0 0.9986 0.0 0.0014 [133]
S231014r 2023-10-14
04:05:48 		Template:Center Template:Center H,L Template:Sort 0.448 0.0 0.0 0.992 0.0 0.0080 [134]
S231020ba 2023-10-20
14:29:47 		Template:Center Template:Center H,L Template:Sort 0.070 0.0 0.076 0.851 0.066 0.0070 [135]
S231020bw 2023-10-20
18:05:09 		Template:Center Template:Center H,L Template:Sort 0.020 0.0 0.0 0.99965 0.0 0.00035 [136]
S231028bg 2023-10-28
15:30:06 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [137]
S231029y 2023-10-29
11:15:08 		Template:Center Template:Center L Template:Sort 0.012 0.0 0.0 0.99977 0.0 0.00023 Detected by only the Livingston detector, resulting in a bad sky localization. [138]
S231102w 2023-11-02
07:17:36 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 3.3e−16 [139]
S231104ac 2023-11-04
13:34:18 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0020 0.988 0.0088 0.0018 [140]
S231108u 2023-11-08
12:51:42 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 0.99969 0.0 0.00032 [141]
S231110g 2023-11-10
04:03:20 		Template:Center Template:Center H,L Template:Sort 0.670 0.0 0.0 0.968 0.0 0.032 [142]
S231113bb 2023-11-13
12:26:23 		Template:Center Template:Center H,L Template:Sort 0.960 0.0 0.0 0.965 0.0041 0.035 [143]
S231113bw 2023-11-13
20:04:17 		Template:Center Template:Center H,L Template:Sort 0.543 0.0 0.161 0.743 0.056 0.040 [144]
S231114n 2023-11-14
04:32:11 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 0.99985 0.0095 0.00015 [145]
S231118d 2023-11-18
00:56:26 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 0.99981 0.0 0.00019 [146]
S231118ab 2023-11-18
07:14:02 		Template:Center Template:Center H,L Template:Sort 0.663 0.0 0.0 0.985 0.0 0.015 [147]
S231118an 2023-11-18
09:06:02 		Template:Center Template:Center H,L Template:Sort 0.986 0.0 0.015 0.726 0.017 0.242 [148]
S231119u 2023-11-19
07:52:48 		Template:Center Template:Center H,L Template:Sort 0.986 0.0 0.015 0.914 0.041 0.045 [149]
S231123cg 2023-11-23
13:54:30 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.015 0.99999 0.041 7.6e−6 [150]
S231127cg 2023-11-27
16:53:00 		Template:Center Template:Center H,L Template:Sort 0.284 0.0 0.0 0.996 0.0063 0.0044 [151]
S231129ac 2023-11-29
08:17:45 		Template:Center Template:Center H,L Template:Sort 0.637 0.0 0.0 0.986 0.0041 0.014 [152]
S231206ca 2023-12-06
23:31:34 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.0 0.99998 0.0 0.000018 [153]
S231206cc 2023-12-06
23:39:01 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [154]
S231213ap 2023-12-13
11:14:17 		Template:Center Template:Center H,L Template:Sort 0.036 0.0 0.0 0.99998 0.0 0.000022 [155]
S231223j 2023-12-23
03:28:36 		Template:Center Template:Center H,L Template:Sort 0.062 0.0 0.0 0.99905 0.000023 0.00095 [156]
S231224e 2023-12-24
02:43:21 		Template:Center Template:Center H,L Template:Sort 0.084 0.0 0.00019 0.880 0.117 0.0034 [157]
S231226av 2023-12-26
10:15:20 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [158]
S231231ag 2023-12-31
15:40:16 		Template:Center Template:Center H Template:Sort 4.8 10−7 0.0 0.0 Template:Sort 0.0 2.9e−8 Detected by only the Hanford detector, resulting in a bad sky localization. [159]
S240104bl 2024-01-04
16:49:32 		Template:Center Template:Center H Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 2.2e−10 Detected by only the Hanford detector, resulting in a bad sky localization. [160]
S240107b 2024-01-07
01:32:15 		Template:Center Template:Center H,L Template:Sort 0.965 0.0 0.0 0.966 0.0 0.034 [161]
S240109a 2024-01-09
05:04:31 		Template:Center Template:Center H Template:Sort 0.344 0.0 0.0 0.995 0.0 0.0053 Detected by only the Hanford detector, resulting in a bad sky localization. [162]
S240406aj 2024-04-06
06:28:47 		Template:Center Template:Center H,L Template:Sort 8.9 10−8 0.0 0.0 Template:Sort 0.0 9.2e−9 [163]
S240413p 2024-04-13
02:20:19 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.584 0.400 0.020 [164]
S240420ax 2024-04-20
04:21:16 		Template:Center Template:Center H,L Template:Sort 0.961 0.0 0.0 0.0 0.0 Template:Sort Unidentified gravitational wave "burst" lasting 33 milliseconds at a frequency of 219 Hertz. [165]
S240422ed 2024-04-22
21:35:13 		Template:Center Template:Center H,L,V Template:Sort 1.8 10−5 0.0 0.541 0.0 0.459 1.3e−5 [166]
S240426s 2024-04-26
03:14:51 		Template:Center Template:Center H,L Template:Sort 0.354 0.0 0.0 0.968 0.030 0.00191 [167]
S240428dr 2024-04-28
22:54:40 		Template:Center Template:Center H,V Template:Sort 1.2 10−6 0.0 0.0 Template:Sort 0.0 7.4e−8 [168]
S240430ca 2024-04-30
09:35:17 		Template:Center Template:Center H,L Template:Sort 0.986 0.0 0.0 0.920 0.041 0.039 [169]
S240501an 2024-05-01
03:35:34 		Template:Center Template:Center H,L,V Template:Sort 0.024 0.0 0.0 0.99999 0.0 1.3e−5 [170]
S240505av 2024-05-05
13:35:52 		Template:Center Template:Center H,L,V Template:Sort 0.731 0.0 0.0 0.985 0.0 0.015 [171]
S240507p 2024-05-07
04:16:32 		Template:Center Template:Center H,L,V Template:Sort 0.036 0.0 0.0 0.963 0.036 0.00031 [172]
S240511i 2024-05-11
03:15:07 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.99998 0.0 1.7e−5 [173]
S240512r 2024-05-12
02:41:39 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.020 0.958 0.020 0.0017 [174]
S240513ei 2024-05-13
18:33:02 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.99973 0.0 0.00027 [175]
S240514c 2024-05-14
08:03:21 		Template:Center Template:Center L Template:Sort 0.425 0.0 0.0 0.9932 0.0 0.0064 Detected by only the Livingston detector, resulting in a bad sky localization. [176]
S240514x 2024-05-14
12:17:13 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.99998 0.0 1.8e−5 [177]
S240515m 2024-05-15
00:53:01 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 4.3e−14 [178]
S240520cv 2024-05-20
21:36:16 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.030 0.921 0.047 0.0018 [179]
S240525p 2024-05-25
03:12:10 		Template:Center Template:Center H,L,V Template:Sort 0.619 0.0 0.0 0.902 0.086 0.012 [180]
S240527en 2024-05-27
18:34:29 		Template:Center Template:Center H,L,V Template:Sort 0.135 0.0 0.00090 0.99907 0.0 2.7e−5 [181]
S240527fv 2024-05-27
23:09:10 		Template:Center Template:Center H,L,V Template:Sort 0.559 0.0 0.0 0.987 0.0036 0.0096 [182]
S240530a 2024-05-30
01:24:17 		Template:Center Template:Center H,L,V Template:Sort 0.053 0.0 0.0 0.910 0.085 0.0048 [183]
S240531bp 2024-05-31
07:52:48 		Template:Center Template:Center H,L,V Template:Sort 0.00022 0.0 0.0 0.99999 0.0 6.5e−6 [184]
S240601aj 2024-06-01
06:12:00 		Template:Center Template:Center H,L Template:Sort 0.829 0.0 0.0 0.507 0.0 0.493 [185]
S240601co 2024-06-01
23:10:04 		Template:Center Template:Center H,L,V Template:Sort 0.0034 0.0 0.0 0.928 0.072 0.00023 [186]
S240615dg 2024-06-15
11:36:20 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.99998 0.0 1.7e−5 [187]
S240615ea 2024-06-15
16:07:35 		Template:Center Template:Center H,L,V Template:Sort 0.582 0.0 0.0 0.99938 0.0 0.00062 [188]
S240618ah 2024-06-18
07:16:27 		Template:Center Template:Center H,L Template:Sort 0.976 0.0 0.0 0.921 0.041 0.038 [189]
S240621dy 2024-06-21
19:50:59 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [190]
S240621eb 2024-06-21
20:09:35 		Template:Center Template:Center H,L,V Template:Sort 0.916 0.0 0.0 0.9987 0.0 0.0013 [191]
S240621em 2024-06-21
21:40:41 		Template:Center Template:Center H,L,V Template:Sort 0.979 0.0 0.0 0.920 0.041 0.039 [192]
S240622h 2024-06-22
00:40:48 		Template:Center Template:Center H,L,V Template:Sort 0.499 0.0 0.0 0.974 0.011 0.015 [193]
S240627by 2024-06-27
13:16:22 		Template:Center Template:Center H,L,V Template:Sort 0.500 0.0 0.0 0.911 0.080 0.0084 [194]
S240629by 2024-06-29
14:52:56 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.073 0.798 0.127 0.0015 [195]
S240630t 2024-06-30
10:17:03 		Template:Center Template:Center H,L,V Template:Sort 0.00011 0.0 0.0 Template:Sort 0.0 3.3e−6 [196]
S240703ad 2024-07-03
19:13:55 		Template:Center Template:Center H,V Template:Sort 6.8 10−6 0.0 0.0 Template:Sort 0.0 2.8e−7 [197]
S240705at 2024-07-05
05:32:15 		Template:Center Template:Center H,L,V Template:Sort 3.8 10−8 0.0 0.0 Template:Sort 0.0 0.0 [198]
S240716b 2024-07-16
03:49:00 		Template:Center Template:Center L,V Template:Sort 4.5 10−8 0.0 0.0 Template:Sort 0.0 3.6e−9 [199]
S240807h 2024-08-07
21:45:59 		Template:Center Template:Center L,V Template:Sort 0.0012 0.0 0.00010 0.956 0.044 3.2e−5 [200]
S240813c 2024-08-13
03:45:48 		Template:Center Template:Center L,V Template:Sort 0.139 0.0 0.0 0.909 0.089 0.0022 [201]
S240813d 2024-08-13
04:39:13 		Template:Center Template:Center L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 1.2e−11 [202]
S240825ar 2024-08-25
05:51:46 		Template:Center Template:Center H,L,V Template:Sort 0.166 0.0 0.025 0.930 0.036 0.0091 [203]
S240830gn 2024-08-30
21:11:20 		Template:Center Template:Center H,L,V Template:Sort 0.036 0.0 0.105 0.891 0.084 0.0031 [204]
S240902bq 2024-09-02
14:33:06 		Template:Center Template:Center H,L,V Template:Sort 0.135 0.0 0.0 0.99990 0.0 9.94e−5 [205]
S240907cg 2024-09-07
15:38:33 		Template:Center Template:Center H,L,V Template:Sort 0.051 0.0 0.0 0.99914 0.0 0.00086 [206]
S240908bs 2024-09-08
08:26:28 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.997 0.0031 1.4e−5 [207]
S240908dg 2024-09-08
12:51:34 		Template:Center Template:Center H,L,V Template:Sort 0.984 0.0 0.0 0.910 0.041 0.050 [208]
S240910ci 2024-09-10
10:35:35 		Template:Center Template:Center H,L Template:Sort 0.018 0.0 0.280 0.628 0.090 0.0015 [209]
S240915b 2024-09-15
00:13:57 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.121 0.745 0.132 0.0015 [210]
S240915bd 2024-09-15
10:51:51 		Template:Center Template:Center H,V Template:Sort 1.9 10−6 0.0 0.00037 0.899 0.101 1.2e−7 [211]
S240917cb 2024-09-17
13:02:37 		Template:Center Template:Center H,L Template:Sort 0.955 0.0 0.0 0.903 0.057 0.040 [212]
S240919bn 2024-09-19
06:15:59 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [213]
S240920bz 2024-09-20
07:34:24 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.99972 0.0 0.00028 [214]
S240920dw 2024-09-20
12:40:24 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [215]
S240921cw 2024-09-21
20:18:35 		Template:Center Template:Center L,V Template:Sort 0.045 0.0 0.0 0.997 0.0025 0.00078 [216]
S240922df 2024-09-22
14:21:06 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 0.965 0.035 0.0 [217]
S240923ct 2024-09-23
20:40:06 		Template:Center Template:Center H,L,V Template:Sort 4.5 10−8 0.0 0.0 Template:Sort 0.0 2.9e−9 [218]
S240924a 2024-09-24
00:03:16 		Template:Center Template:Center H,L,V Template:Sort 0.132 0.0 0.0 0.99993 0.0 7.1e−5 [219]
S240925n 2024-09-25
00:58:59 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 0.742 0.258 0.0 [220]
S240930aa 2024-09-30
00:58:59 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 0.99960 0.00040 1.7e−12 [221]
S240930du 2024-09-30
23:46:14 		Template:Center Template:Center H,L Template:Sort 0.521 0.0 0.0 0.666 0.0 0.334 [222]
S241002e 2024-10-02
03:05:59 		Template:Center Template:Center L,V Template:Sort 0.0 0.0 0.0 0.997 0.003 1.05e−14 [223]
S241006k 2024-10-06
01:53:33 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [224]
S241007bw 2024-10-07
08:29:43 		Template:Center Template:Center H,L,V Template:Sort 0.611 0.0 0.0 0.988 0.0 0.012 [225]
S241009l 2024-10-09
02:28:35 		Template:Center Template:Center H,L,V Template:Sort 0.851 0.0 0.0 0.971 0.004 0.025 [226]
S241009an 2024-10-09
08:48:16 		Template:Center Template:Center H,L,V Template:Sort 0.00011 0.0 0.0 0.982 0.017 2.9e−6 [227]
S241009em 2024-10-09
22:04:55 		Template:Center Template:Center H,L,V Template:Sort 0.149 0.0 0.0 0.998 0.0 0.0025 [228]
S241011k 2024-10-11
23:38:34 		Template:Center Template:Center H,V Template:Sort 0.0 0.0 0.00022 0.967 0.033 1.1e−16 [229]
S241101ee 2024-11-01
22:05:23 		Template:Center Template:Center L,V Template:Sort 0.00079 0.0 0.0 0.99998 0.0 2.0e−5 [230]
S241102br 2024-11-02
12:40:58 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0067 0.850 0.144 1.1e−16 [231]
S241102cy 2024-11-02
14:47:29 		Template:Center Template:Center H,L,V Template:Sort 0.582 0.0 0.0 0.999 0.0 0.0011 [232]
S241109p 2024-11-09
03:33:17 		Template:Center Template:Center L,V Template:Sort 0.0035 0.0 0.0 0.99992 0.0 8.3e−5 [233]
S241109bn 2024-11-09
11:59:24 		Template:Center Template:Center H,V Template:Sort 0.00082 0.0 0.121 0.047 0.830 0.0026 The other component is a black hole. [234]
S241110br 2024-11-10
12:41:23 		Template:Center Template:Center H,L,V Template:Sort 0.236 0.0 0.0 0.942 0.054 0.0038 [235]
S241111bn 2024-11-11
11:15:52 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [236]
S241113p 2024-11-13
16:35:07 		Template:Center Template:Center L,V Template:Sort 8.4 10−7 0.0 0.0 Template:Sort 0.0 4.0e−8 [237]
S241114y 2024-11-14
02:47:11 		Template:Center Template:Center H,L,V Template:Sort 5.2 10−6 0.0 0.0 Template:Sort 0.0 2.4e−7 [238]
S241114bi 2024-11-14
23:52:58 		Template:Center Template:Center L,V Template:Sort 1.0 10−5 0.0 0.00049 0.943 0.056 4.2e−7 [239]
S241116cq 2024-11-16
15:17:53 		Template:Center Template:Center H,L,V Template:Sort 0.330 0.0 0.0 0.99992 0.0 8.3e−5 [240]
S241122a 2024-11-22
17:51:00 		Template:Center Template:Center L Template:Sort 0.975 0.0 0.0 0.955 0.0 0.045 Detected by only the Livingston detector, resulting in a bad sky localization. [241]
S241125n 2024-11-25
01:01:16 		Template:Center Template:Center H,L,V Template:Sort 0.053 0.0 0.0 0.99999 0.0 1.1e−5 [242]
S241127aj 2024-11-27
06:10:08 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [243]
S241129aa 2024-11-29
02:18:32 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 0.993 0.006 0.0 [244]
S241130n 2024-11-30
03:49:08 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [245]
S241130be 2024-11-30
11:04:22 		Template:Center Template:Center H,L,V Template:Sort 0.011 0.0 0.0 0.963 0.037 0.00063 [246]
S241201ac 2024-12-01
05:57:58 		Template:Center Template:Center H,L,V Template:Sort 0.917 0.0 0.0 0.926 0.041 0.033 [247]
S241210d 2024-12-10
02:33:35 		Template:Center Template:Center H,L Template:Sort 0.920 0.0 0.0 0.926 0.041 0.033 [248]
S241210cw 2024-12-10
06:06:06 		Template:Center Template:Center H,L,V Template:Sort 0.036 0.0 0.0 0.99995 0.0 5.1e−5 [249]
S241210fu 2024-12-10
12:09:00 		Template:Center Template:Center H,L Template:Sort 0.791 0.0 0.0 0.978 0.0014 0.021 [250]
S241225c 2024-12-25
04:25:53 		Template:Center Template:Center L,V Template:Sort 1.1 10−7 0.0 0.0 0.964 0.036 8.0e−9 [251]
S241225v 2024-12-25
08:28:15 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 1.5e−14 [252]
S241230bd 2024-12-30
08:45:04 		Template:Center Template:Center L,V Template:Sort 3.6 10−6 0.0 0.0 Template:Sort 0.0 1.6e−7 [253]
S241230ev 2024-12-30
23:36:18 		Template:Center Template:Center H,L,V Template:Sort 0.717 0.0 0.0 0.984 0.0 0.016 [254]
S241231bg 2024-12-31
05:41:33 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.931 0.067 0.0015 [255]
S250101k 2025-01-01
01:12:05 		Template:Center Template:Center H,L,V Template:Sort 0.959 0.0 0.079 0.882 0.0 0.039 [256]
S250104v 2025-01-04
01:51:22 		Template:Center Template:Center H,L,V Template:Sort 5.5 10−5 0.0 0.0 Template:Sort 0.0 1.7e−6 [257]
S250108eo 2025-01-08
15:22:21 		Template:Center Template:Center H,L,V Template:Sort 0.0010 0.0 0.0 0.99997 0.0 2.6e−5 [258]
S250109f 2025-01-09
01:05:41 		Template:Center Template:Center H,L,V Template:Sort 0.00017 0.0 0.0 Template:Sort 0.0 4.4e−6 [259]
S250109bi 2025-01-09
07:45:52 		Template:Center Template:Center H,V Template:Sort 0.692 0.0 0.0 0.985 0.0 0.015 [260]
S250114ax 2025-01-14
08:22:03 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [261]
S250118t 2025-01-18
02:32:25 		Template:Center Template:Center H,L,V Template:Sort 0.023 0.0 0.0 0.961 0.039 0.00039 [262]
S250118az 2025-01-18
05:58:02 		Template:Center Template:Center H,L,V Template:Sort 0.430 0.0 0.00065 0.807 0.185 0.0073 [263]
S250118dp 2025-01-18
17:05:23 		Template:Center Template:Center H,L Template:Sort 0.0 0.0 0.0 0.994 0.0063 0.0 [264]
S250119ag 2025-01-19
02:51:38 		Template:Center Template:Center H,L,V Template:Sort 1.9 10−5 0.0 0.0 Template:Sort 0.0 1.5e−6 [265]
S250119cv 2025-01-19
19:02:38 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [266]
S250202cu 2025-02-02
18:49:02 		Template:Center Template:Center H,L Template:Sort 0.568 0.0 0.0 0.948 0.042 0.0099 [267]
S250204ax 2025-02-04
05:52:59 		Template:Center Template:Center H,L,V Template:Sort 0.018 0.0 0.0 0.99974 0.0 0.00026 [268]
S250205bk 2025-02-05
10:35:41 		Template:Center Template:Center H,L,V Template:Sort 0.053 0.0 0.014 0.970 0.00815 0.0072 [269]
S250205ee 2025-02-05
21:52:15 		Template:Center Template:Center H,L Template:Sort 0.100 0.0 0.0 0.998 0.0 0.0017 [270]
S250206dm 2025-02-06
21:25:30 		Template:Center Template:Center H,L Template:Sort 0.070 0.143 0.211 0.0 0.568 0.077 The other component is a neutron star. [271]
S250207bg 2025-02-07
11:56:45 		Template:Center Template:Center L,V Template:Sort 0.0 0.0 0.0 Template:Sort 0.0 0.0 [272]
S250208ad 2025-02-08
03:51:06 		Template:Center Template:Center H,L,V Template:Sort 0.021 0.0 0.0 0.99956 0.0 0.00044 [273]
S250211aa 2025-02-11
02:25:46 		Template:Center Template:Center H,L,V Template:Sort 0.0 0.0 0.0 0.990 0.010 3.2e-11 [274]
S250211be 2025-02-11
04:35:43 		Template:Center Template:Center H,L,V Template:Sort 0.641 0.0 0.0 0.987 0.0 0.013 [275]
S250226dl 2025-02-26
22:48:38 		Template:Center Template:Center H,L Template:Sort 6.7 10−5 0.0 0.0 Template:Sort 0.0 2.4e-5 [276]
S250227e 2025-02-27
00:13:02 		Template:Center Template:Center H,L,V Template:Sort 0.00015 0.0 0.0 Template:Sort 0.0 4.0e-6 [277]

See also

  • GRB 150101B, a weak gamma-ray burst trigger observed prior to aLIGO O1 (beginning September 12, 2015), with claimed similarities to model-supported possible neutron star merger GW170817/GRB 170817A/AT2017gfo.

Notes

Template:Reflist

References

Template:Reflist

Template:Gravitational waves Template:Portal bar

  1. ↑ Template:Cite web
  2. ↑ 2.0 2.1 Template:Cite web
  3. ↑ Template:Cite journal
  4. ↑ Template:Cite web
  5. ↑ 5.0 5.1 Template:Cite web
  6. ↑ 6.0 6.1 Ligo, Virgo and Kagra Observing Run Plans
  7. ↑ Template:Cite web
  8. ↑ Template:Cite web
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