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GW191215_223052 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW191215_223052

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW191215_223052

Both component-mass lower bounds exceed 3 solar masses

Primary mass24.9 M☉

Secondary mass18.1 M☉

ObservedDec 15, 2019

Event identity

Classification and release

ID: gwtc:GW191215_223052
Event name: GW191215_223052
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: Sunday, December 15, 2019 at 10:30:52 PM UTC UTC
GPS time: 1,260,484,270.3

Source-frame posterior

Component and remnant masses

Primary mass: 24.9 (-4.1, +7.1) M☉
Secondary mass: 18.1 (-4.1, +3.8) M☉
Remnant mass: 41.4 (-4.1, +5.1) M☉
Effective spin: -0.04
Network SNR: 11.2

Propagation

Distance and statistical context

Luminosity distance: 1,930 (-860, +890) Mpc
Redshift: 0.35
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-3-confident

GW191215_223052

Last synchronized 9/12/2026, 1:40:20 AM UTC.

JSON record GWOSC event page