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GW250114_082203 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW250114_082203

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW250114_082203

Both component-mass lower bounds exceed 3 solar masses

Primary mass33.76 M☉

Secondary mass32.26 M☉

ObservedJan 14, 2025

Event identity

Classification and release

ID: gwtc:GW250114_082203
Event name: GW250114_082203
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-5.0
Preferred event version: v2
Observed at: Tuesday, January 14, 2025 at 8:22:03 AM UTC UTC
GPS time: 1,420,878,141.2

Source-frame posterior

Component and remnant masses

Primary mass: 33.76 (-0.9, +1.28) M☉
Secondary mass: 32.26 (-1.47, +0.95) M☉
Remnant mass: 62.9 (-1.1, +1) M☉
Effective spin: -0.03
Network SNR: 78.6

Propagation

Distance and statistical context

Luminosity distance: 405 (-73, +84) Mpc
Redshift: 0.09
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW250114_082203

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

JSON record GWOSC event page