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GW230630_125806 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW230630_125806

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW230630_125806

Both component-mass lower bounds exceed 3 solar masses

Primary mass51 M☉

Secondary mass33 M☉

ObservedJun 30, 2023

Event identity

Classification and release

ID: gwtc:GW230630_125806
Event name: GW230630_125806
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, June 30, 2023 at 12:58:06 PM UTC UTC
GPS time: 1,372,165,104.9

Source-frame posterior

Component and remnant masses

Primary mass: 51 (-15, +20) M☉
Secondary mass: 33 (-13, +15) M☉
Remnant mass: 80 (-18, +24) M☉
Effective spin: 0.18
Network SNR: 9

Propagation

Distance and statistical context

Luminosity distance: 5,400 (-3,000, +5,100) Mpc
Redshift: 0.83
Astrophysical probability: 0.99
False-alarm rate: 0.048

Provenance

Official source record

GWOSC · GWTC-4.1

GW230630_125806

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

JSON record GWOSC event page