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GW230922_040658 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230922_040658

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230922_040658

Both component-mass lower bounds exceed 3 solar masses

Primary mass76 M☉

Secondary mass51 M☉

ObservedSep 22, 2023

Event identity

Classification and release

ID: gwtc:GW230922_040658
Event name: GW230922_040658
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-4.1
Preferred event version: v2
Observed at: Friday, September 22, 2023 at 4:06:58 AM UTC UTC
GPS time: 1,379,390,836.1

Source-frame posterior

Component and remnant masses

Primary mass: 76 (-18, +28) M☉
Secondary mass: 51 (-24, +22) M☉
Remnant mass: 119 (-21, +34) M☉
Effective spin: 0.31
Network SNR: 12.5

Propagation

Distance and statistical context

Luminosity distance: 6,500 (-3,500, +4,100) Mpc
Redshift: 0.96
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-4.1

GW230922_040658

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

JSON record GWOSC event page