GWTC

The Gravitational-wave Transient Catalog (GWTC) is a cumulative set of gravitational wave transients maintained by the LIGO/Virgo/KAGRA collaboration. The online GWTC contains confidently-detected events from multiple data releases. For further information, see documentation for individual releases: GWTC-1, GWTC-2, GWTC-2.1, GWTC-3, and GWTC-4.0.

Note, this catalog is only updated periodically, and may not contain recently published events. For the most recent events, you can browse all available events.

Previous versions of this catalog are archived in zenodo or are available using the following links:

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Click an event name for all versions and more information.
Values in the table below are from the Default SEARCH and Default PE cases found in the individual event's page.
See Event Portal Usage Notes for more details.

List contains 219 events.

Name	Version	Release	Run	GPS	Mass 1 (M_☉)	Mass 2 (M_☉)	Network SNR	Distance (Mpc)	χ_eff	Total Mass (M_☉)	Chirp Mass (M_☉)	Detector Frame Chirp Mass (M_☉)	Redshift	False Alarm Rate (yr^-1)	P_astro	Final Mass (M_☉)
GW230708_071859	v1	GWTC-4.0	O4a	1372835957.4	--	--	9.1	--	--	--	--	--	--	1.5	0.73	--
GW230708_053705	v1	GWTC-4.0	O4a	1372829843.1	29.1 ^+8.2 _-5.4	22.8 ^+5.5 _-5.4	8.9	3300 ⁺²⁰⁰⁰ _-1700	0.07 ^+0.23 _-0.24	51.9 ^+10.2 _-7.6	22.2 ^+4.4 _-3.3	--	0.55 ^+0.27 _-0.25	0.22	≥ 0.99	49.4 ^+9.7 _-7.2
GW230707_124047	v1	GWTC-4.0	O4a	1372768865.3	46.1 ^+12.2 _-8.2	36.4 ^+10.6 _-9.8	11.9	4500 ⁺²³⁰⁰ _-2300	-0.05 ^+0.25 _-0.29	82 ⁺¹⁹ _-12	35.1 ^+8.6 _-5.3	--	0.71 ^+0.29 _-0.32	0.0011	0.99	78 ⁺¹⁸ _-11
GW230706_104333	v1	GWTC-4.0	O4a	1372675431.2	16.3 ^+5.4 _-3.0	11.5 ^+2.6 _-2.7	9.2	1930 ⁺⁹²⁰ _-980	0.19 ^+0.13 _-0.14	27.9 ^+4.4 _-3.0	11.8 ^+1.7 _-1.1	--	0.35 ^+0.14 _-0.16	0.23	0.98	26.5 ^+4.3 _-2.8
GW230704_212616	v1	GWTC-4.0	O4a	1372541194.7	89 ⁺⁴² _-27	49 ⁺³⁰ _-25	8.7	7200 ⁺⁶¹⁰⁰ _-4200	0.28 ^+0.34 _-0.43	139 ⁺⁴⁹ _-31	55 ⁺²³ _-14	--	1.05 ^+0.68 _-0.54	0.51	0.93	132 ⁺⁴⁷ _-30
GW230704_021211	v1	GWTC-4.0	O4a	1372471949.2	32.4 ^+11.9 _-7.9	19.9 ^+6.5 _-6.0	9.4	2700 ⁺¹⁸⁰⁰ _-1500	-0.01 ^+0.21 _-0.24	52.7 ^+10.8 _-8.2	21.8 ^+4.4 _-3.2	--	0.48 ^+0.25 _-0.23	0.21	≥ 0.99	50.5 ^+10.6 _-7.9
GW230702_185453	v1	GWTC-4.0	O4a	1372359311.7	40 ⁺²⁰ _-13	18.0 ^+8.5 _-6.5	10.1	2400 ⁺¹⁹⁰⁰ _-1100	0.05 ^+0.29 _-0.26	60 ⁺¹⁵ _-11	22.9 ^+4.0 _-3.5	--	0.43 ^+0.27 _-0.17	≤ 0.000010	≥ 0.99	57 ⁺¹⁵ _-11
GW230702_162025	v1	GWTC-4.0	O4a	1372350043.9	--	--	9.2	--	--	--	--	--	--	6.5	0.60	--
GW230630_234532	v1	GWTC-4.0	O4a	1372203950.4	10.0 ^+3.5 _-1.8	6.6 ^+1.5 _-1.6	9.9	1080 ⁺⁵²⁰ _-480	-0.04 ^+0.16 _-0.08	16.8 ^+2.1 _-1.4	7.06 ^+0.57 _-0.48	--	0.21 ^+0.09 _-0.09	0.00042	≥ 0.99	16.1 ^+2.1 _-1.4
GW230630_125806	v1	GWTC-4.0	O4a	1372165104.9	51 ⁺²⁰ _-14	33 ⁺¹⁵ _-13	9.0	5400 ⁺⁵¹⁰⁰ _-3000	0.17 ^+0.30 _-0.31	84 ⁺²⁶ _-19	35.0 ^+11.4 _-8.5	--	0.83 ^+0.59 _-0.41	0.16	≥ 0.99	80 ⁺²⁵ _-18
GW230630_070659	v1	GWTC-4.0	O4a	1372144037.0	--	--	9.8	--	--	--	--	--	--	0.47	0.88	--
GW230628_231200	v1	GWTC-4.0	O4a	1372029138.4	32.5 ^+5.9 _-3.9	27.1 ^+4.9 _-5.2	16.4	2250 ⁺⁸⁰⁰ _-1070	-0.01 ^+0.16 _-0.16	59.3 ^+8.6 _-4.9	25.5 ^+3.8 _-2.2	--	0.40 ^+0.12 _-0.17	≤ 0.000010	≥ 0.99	56.5 ^+8.1 _-4.6
GW230627_015337	v1	GWTC-4.0	O4a	1371866035.8	8.4 ^+1.7 _-1.3	5.79 ^+0.95 _-0.92	28.7	305 ⁺⁶⁵ _-134	0.02 ^+0.08 _-0.03	14.19 ^+0.77 _-0.45	6.02 ^+0.16 _-0.07	--	0.07 ^+0.01 _-0.03	≤ 0.000010	≥ 0.99	13.54 ^+0.82 _-0.45
GW230625_211655	v1	GWTC-4.0	O4a	1371763033.0	--	--	8.1	--	--	--	--	--	--	42	0.61	--
GW230624_214944	v1	GWTC-4.0	O4a	1371678602.5	--	--	10.6	--	--	--	--	--	--	2.2	0.69	--
GW230624_113103	v1	GWTC-4.0	O4a	1371641481.7	27.2 ^+13.4 _-6.9	16.1 ^+4.8 _-4.5	11.4	1940 ⁺¹²⁷⁰ _-970	0.17 ^+0.29 _-0.25	43.8 ^+11.1 _-6.6	18.0 ^+3.2 _-2.4	--	0.35 ^+0.19 _-0.16	0.00018	≥ 0.99	41.8 ^+10.7 _-6.3
GW230618_102550	v1	GWTC-4.0	O4a	1371119168.0	--	--	7.8	--	--	--	--	--	--	49	0.59	--
GW230615_160825	v1	GWTC-4.0	O4a	1370880524.0	--	--	8.9	--	--	--	--	--	--	4.3	0.50	--
GW230609_064958	v1	GWTC-4.0	O4a	1370328616.3	35.3 ^+10.7 _-6.9	25.2 ^+7.5 _-7.5	10.6	3400 ⁺¹⁹⁰⁰ _-1700	-0.14 ^+0.22 _-0.27	60.3 ^+12.9 _-8.0	25.5 ^+5.8 _-3.6	--	0.56 ^+0.25 _-0.25	0.00014	≥ 0.99	57.8 ^+12.2 _-7.7
GW230609_010824	v1	GWTC-4.0	O4a	1370308122.4	--	--	8.0	--	--	--	--	--	--	2.8	0.81	--
GW230608_205047	v1	GWTC-4.0	O4a	1370292665.2	48 ⁺¹³ _-11	31 ⁺¹¹ _-11	10.2	3500 ⁺²²⁰⁰ _-1700	0.04 ^+0.25 _-0.26	79 ⁺¹⁶ _-11	32.8 ^+7.3 _-5.4	--	0.58 ^+0.29 _-0.26	0.0012	≥ 0.99	75 ⁺¹⁵ _-11
GW230606_024545	v1	GWTC-4.0	O4a	1370054763.5	--	--	7.5	--	--	--	--	--	--	3.2	0.88	--
GW230606_004305	v1	GWTC-4.0	O4a	1370047403.8	37.6 ^+13.4 _-7.6	25.8 ^+8.1 _-8.3	11.1	2700 ⁺¹⁵⁰⁰ _-1400	-0.11 ^+0.26 _-0.31	63.4 ^+13.4 _-8.3	26.5 ^+5.7 _-3.6	--	0.48 ^+0.20 _-0.22	0.00041	≥ 0.99	60.7 ^+12.8 _-7.9
GW230605_065343	v1	GWTC-4.0	O4a	1369983241.5	17.2 ^+6.5 _-3.5	11.1 ^+2.5 _-2.7	11.4	1060 ⁺⁶¹⁰ _-480	0.06 ^+0.16 _-0.10	28.6 ^+4.0 _-2.8	11.94 ^+0.96 _-0.94	--	0.21 ^+0.10 _-0.09	≤ 0.000010	≥ 0.99	27.3 ^+4.1 _-2.7
GW230603_174756	v1	GWTC-4.0	O4a	1369849694.9	--	--	8.0	--	--	--	--	--	--	8.4	0.73	--
GW230601_224134	v1	GWTC-4.0	O4a	1369694512.1	64 ⁺¹⁷ _-13	44 ⁺¹⁴ _-15	13.4	3700 ⁺²¹⁰⁰ _-1800	-0.03 ^+0.27 _-0.32	107 ⁺²² _-15	45.0 ^+10.0 _-7.3	--	0.60 ^+0.28 _-0.26	≤ 0.000010	≥ 0.99	102 ⁺²¹ _-14
GW230531_141100	v1	GWTC-4.0	O4a	1369577478.3	--	--	8.0	--	--	--	--	--	--	3.5	0.69	--
GW230529_181500	v2	GWTC-4.0	O4a	1369419318.7	3.66 ^+0.81 _-1.21	1.42 ^+0.60 _-0.22	11.8	202 ⁺¹⁰³ _-98	-0.10 ^+0.12 _-0.18	5.08 ^+0.60 _-0.60	1.94 ^+0.04 _-0.04	--	0.04 ^+0.02 _-0.02	0.00022	≥ 0.99	--
GW230518_125908	v1	GWTC-4.0	O4a	1368449966.2	8.17 ^+0.84 _-0.92	1.45 ^+0.13 _-0.10	14.1	236 ⁺¹⁰⁸ _-96	-0.01 ^+0.09 _-0.11	9.61 ^+0.76 _-0.79	2.80 ^+0.06 _-0.06	--	0.05 ^+0.02 _-0.02	≤ 0.000010	≥ 0.99	--
GW200322_091133	v1	GWTC-3-confident	O3b	1268903511.3	38 ⁺¹³⁰ _-22	11.3 ^+24.3 _-6.0	4.5 ^+2.7 _-3.0	3500 ⁺¹²⁵⁰⁰ _-2200	0.27 ^+0.54 _-0.58	50 ⁺¹³² _-22	15.0 ^+29.5 _-4.0	--	0.59 ^+1.43 _-0.32	140	0.62	48 ⁺¹³² _-22
GW200316_215756	v1	GWTC-3-confident	O3b	1268431094.1	13.1 ^+10.2 _-2.9	7.8 ^+2.0 _-2.9	10.3 ^+0.4 _-0.7	1120 ⁺⁴⁸⁰ _-440	0.13 ^+0.27 _-0.10	21.2 ^+7.2 _-2.0	8.75 ^+0.62 _-0.55	--	0.22 ^+0.08 _-0.08	≤ 1.0e-05	≥ 0.99	20.2 ^+7.4 _-1.9
GW200311_115853	v1	GWTC-3-confident	O3b	1267963151.3	34.2 ^+6.4 _-3.8	27.7 ^+4.1 _-5.9	17.8 ^+0.2 _-0.2	1170 ⁺²⁸⁰ _-400	-0.02 ^+0.16 _-0.20	61.9 ^+5.3 _-4.2	26.6 ^+2.4 _-2.0	--	0.23 ^+0.05 _-0.07	≤ 1.0e-05	≥ 0.99	59.0 ^+4.8 _-3.9
GW200308_173609	v1	GWTC-3-confident	O3b	1267724187.7	60 ⁺¹⁶⁶ _-29	24 ⁺³⁶ _-13	4.7 ^+2.5 _-2.9	7100 ⁺¹³⁹⁰⁰ _-4400	0.16 ^+0.58 _-0.49	92.0 ^+169.0 _-48.0	34 ⁺⁴⁴ _-18	--	1.04 ^+1.47 _-0.57	2.4	0.86	88 ⁺¹⁶⁹ _-47
GW200306_093714	v1	GWTC-3-confident	O3b	1267522652.1	28.3 ^+17.1 _-7.7	14.8 ^+6.5 _-6.4	7.8 ^+0.4 _-0.6	2100 ⁺¹⁷⁰⁰ _-1100	0.32 ^+0.28 _-0.46	43.9 ^+11.8 _-7.5	17.5 ^+3.5 _-3.0	--	0.38 ^+0.24 _-0.18	24	0.81	41.7 ^+12.3 _-6.9
GW200302_015811	v1	GWTC-3-confident	O3b	1267149509.5	37.8 ^+8.7 _-8.5	20.0 ^+8.1 _-5.7	10.8 ^+0.3 _-0.4	1480 ⁺¹⁰²⁰ _-700	0.01 ^+0.25 _-0.26	57.8 ^+9.6 _-6.9	23.4 ^+4.7 _-3.0	--	0.28 ^+0.16 _-0.12	0.11	0.91	55.5 ^+8.9 _-6.6
GW200225_060421	v1	GWTC-3-confident	O3b	1266645879.3	19.3 ^+5.0 _-3.0	14.0 ^+2.8 _-3.5	12.5 ^+0.3 _-0.4	1150 ⁺⁵¹⁰ _-530	-0.12 ^+0.17 _-0.28	33.5 ^+3.6 _-3.0	14.2 ^+1.5 _-1.4	--	0.22 ^+0.09 _-0.10	≤ 1.1e-05	≥ 0.99	32.1 ^+3.5 _-2.8
GW200224_222234	v1	GWTC-3-confident	O3b	1266618172.4	40.0 ^+6.7 _-4.5	32.7 ^+4.8 _-7.2	20.0 ^+0.2 _-0.2	1710 ⁺⁵⁰⁰ _-650	0.10 ^+0.15 _-0.16	72.3 ^+7.2 _-5.3	31.1 ^+3.3 _-2.7	--	0.32 ^+0.08 _-0.11	≤ 1.0e-05	≥ 0.99	68.7 ^+6.7 _-4.8
GW200220_124850	v1	GWTC-3-confident	O3b	1266238148.1	38.9 ^+14.1 _-8.6	27.9 ^+9.2 _-9.0	8.5 ^+0.3 _-0.5	4000 ⁺²⁸⁰⁰ _-2200	-0.07 ^+0.27 _-0.33	67 ⁺¹⁷ _-12	28.2 ^+7.3 _-5.1	--	0.66 ^+0.36 _-0.31	30	0.83	64 ⁺¹⁶ _-11
GW200220_061928	v1	GWTC-3-confident	O3b	1266214786.7	87 ⁺⁴⁰ _-23	61 ⁺²⁶ _-25	7.2 ^+0.4 _-0.7	6000 ⁺⁴⁸⁰⁰ _-3100	0.06 ^+0.40 _-0.38	148 ⁺⁵⁵ _-33	62 ⁺²³ _-15	--	0.90 ^+0.55 _-0.40	6.8	0.62	141 ⁺⁵¹ _-31
GW200219_094415	v1	GWTC-3-confident	O3b	1266140673.1	37.5 ^+10.1 _-6.9	27.9 ^+7.4 _-8.4	10.7 ^+0.3 _-0.5	3400 ⁺¹⁷⁰⁰ _-1500	-0.08 ^+0.23 _-0.29	65.0 ^+12.6 _-8.2	27.6 ^+5.6 _-3.8	--	0.57 ^+0.22 _-0.22	0.00099	≥ 0.99	62.2 ^+11.7 _-7.8
GW200216_220804	v1	GWTC-3-confident	O3b	1265926102.8	51 ⁺²² _-13	30 ⁺¹⁴ _-16	8.1 ^+0.4 _-0.5	3800 ⁺³⁰⁰⁰ _-2000	0.10 ^+0.34 _-0.36	81 ⁺²⁰ _-14	32.9 ^+9.3 _-8.5	--	0.63 ^+0.37 _-0.29	0.35	0.77	78 ⁺¹⁹ _-13
GW200210_092254	v1	GWTC-3-confident	O3b	1265361792.9	24.1 ^+7.5 _-4.6	2.83 ^+0.47 _-0.42	8.4 ^+0.5 _-0.7	940 ⁺⁴³⁰ _-340	0.02 ^+0.22 _-0.21	27.0 ^+7.1 _-4.3	6.56 ^+0.38 _-0.40	--	0.19 ^+0.08 _-0.06	1.2	0.54	26.7 ^+7.2 _-4.3
GW200209_085452	v1	GWTC-3-confident	O3b	1265273710.1	35.6 ^+10.5 _-6.8	27.1 ^+7.8 _-7.8	9.6 ^+0.4 _-0.5	3400 ⁺¹⁹⁰⁰ _-1800	-0.12 ^+0.24 _-0.30	62.6 ^+13.9 _-9.4	26.7 ^+6.0 _-4.2	--	0.57 ^+0.25 _-0.26	0.046	0.97	59.9 ^+13.1 _-8.9
GW200208_222617	v1	GWTC-3-confident	O3b	1265235995.9	51 ⁺¹⁰³ _-30	12.3 ^+9.2 _-5.5	7.4 ^+1.4 _-1.2	4100 ⁺⁴⁴⁰⁰ _-2000	0.45 ^+0.42 _-0.46	63 ⁺¹⁰⁰ _-26	19.8 ^+10.5 _-5.2	--	0.66 ^+0.53 _-0.29	4.8	0.70	61 ⁺⁹⁹ _-26
GW200208_130117	v1	GWTC-3-confident	O3b	1265202095.9	37.7 ^+9.3 _-6.2	27.4 ^+6.3 _-7.3	10.8 ^+0.3 _-0.4	2230 ⁺¹⁰²⁰ _-850	-0.07 ^+0.21 _-0.27	65.3 ^+8.1 _-6.8	27.7 ^+3.7 _-3.1	--	0.40 ^+0.15 _-0.14	0.00031	≥ 0.99	62.5 ^+7.5 _-6.4
GW200202_154313	v1	GWTC-3-confident	O3b	1264693411.5	10.1 ^+3.5 _-1.4	7.3 ^+1.1 _-1.7	10.8 ^+0.2 _-0.4	410 ⁺¹⁵⁰ _-160	0.04 ^+0.13 _-0.06	17.58 ^+1.78 _-0.67	7.49 ^+0.24 _-0.20	--	0.09 ^+0.03 _-0.03	≤ 1.0e-05	≥ 0.99	16.76 ^+1.87 _-0.66
GW200129_065458	v1	GWTC-3-confident	O3b	1264316116.4	34.5 ^+9.9 _-3.1	29.0 ^+3.3 _-9.3	26.8 ^+0.2 _-0.2	890 ⁺²⁶⁰ _-370	0.11 ^+0.11 _-0.16	63.3 ^+4.5 _-3.4	27.2 ^+2.1 _-2.3	--	0.18 ^+0.05 _-0.07	≤ 1.0e-05	≥ 0.99	60.2 ^+4.1 _-3.2
GW200128_022011	v1	GWTC-3-confident	O3b	1264213229.9	42.2 ^+11.6 _-8.1	32.6 ^+9.5 _-9.2	10.6 ^+0.3 _-0.4	3400 ⁺²¹⁰⁰ _-1800	0.12 ^+0.24 _-0.25	75 ⁺¹⁷ _-12	32.0 ^+7.5 _-5.5	--	0.56 ^+0.28 _-0.28	0.0043	≥ 0.99	71 ⁺¹⁶ _-11
GW200115_042309	v2	GWTC-3-confident	O3b	1263097407.7	5.9 ^+2.0 _-2.5	1.44 ^+0.85 _-0.28	11.3 ^+0.3 _-0.5	290 ⁺¹⁵⁰ _-100	-0.15 ^+0.23 _-0.42	7.4 ^+1.7 _-1.7	2.43 ^+0.05 _-0.07	--	0.06 ^+0.03 _-0.02	≤ 1.0e-05	≥ 0.99	7.2 ^+1.8 _-1.7
GW200112_155838	v1	GWTC-3-confident	O3b	1262879936.0	35.6 ^+6.7 _-4.5	28.3 ^+4.4 _-5.9	19.8 ^+0.1 _-0.2	1250 ⁺⁴³⁰ _-460	0.06 ^+0.15 _-0.15	63.9 ^+5.7 _-4.6	27.4 ^+2.6 _-2.1	--	0.24 ^+0.07 _-0.08	≤ 1.0e-05	≥ 0.99	60.8 ^+5.3 _-4.3

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