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GW191230_180458 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW191230_180458

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW191230_180458

Both component-mass lower bounds exceed 3 solar masses

Primary mass49.4 M☉

Secondary mass37 M☉

ObservedDec 30, 2019

Event identity

Classification and release

ID: gwtc:GW191230_180458
Event name: GW191230_180458
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: Monday, December 30, 2019 at 6:04:58 PM UTC UTC
GPS time: 1,261,764,316.4

Source-frame posterior

Component and remnant masses

Primary mass: 49.4 (-9.6, +14) M☉
Secondary mass: 37 (-12, +11) M☉
Remnant mass: 82 (-11, +17) M☉
Effective spin: -0.05
Network SNR: 10.4

Propagation

Distance and statistical context

Luminosity distance: 4,300 (-1,900, +2,100) Mpc
Redshift: 0.69
Astrophysical probability: 0.9616
False-alarm rate: 0.05

Provenance

Official source record

GWOSC · GWTC-3-confident

GW191230_180458

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

JSON record GWOSC event page