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GW200220_061928 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW200220_061928

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW200220_061928

Both component-mass lower bounds exceed 3 solar masses

Primary mass87 M☉

Secondary mass61 M☉

ObservedFeb 20, 2020

Event identity

Classification and release

ID: gwtc:GW200220_061928
Event name: GW200220_061928
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-3-confident
Preferred event version: v1
Observed at: Thursday, February 20, 2020 at 6:19:28 AM UTC UTC
GPS time: 1,266,214,786.7

Source-frame posterior

Component and remnant masses

Primary mass: 87 (-23, +40) M☉
Secondary mass: 61 (-25, +26) M☉
Remnant mass: 141 (-31, +51) M☉
Effective spin: 0.06
Network SNR: 7.2

Propagation

Distance and statistical context

Luminosity distance: 6,000 (-3,100, +4,800) Mpc
Redshift: 0.9
Astrophysical probability: 0.6238
False-alarm rate: 6.8

Provenance

Official source record

GWOSC · GWTC-3-confident

GW200220_061928

Last synchronized 9/12/2026, 3:20:17 AM UTC.

JSON record GWOSC event page