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GW151012 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW151012

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW151012

Both component-mass lower bounds exceed 3 solar masses

Primary mass24.8 M☉

Secondary mass13.6 M☉

ObservedOct 12, 2015

Event identity

Classification and release

ID: gwtc:GW151012
Event name: GW151012
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-2.1-confident
Preferred event version: v4
Observed at: Monday, October 12, 2015 at 9:54:43 AM UTC UTC
GPS time: 1,128,678,900.4

Source-frame posterior

Component and remnant masses

Primary mass: 24.8 (-6.3, +14.5) M☉
Secondary mass: 13.6 (-4.9, +4.5) M☉
Remnant mass: 37.1 (-4.6, +10.6) M☉
Effective spin: 0.12
Network SNR: 9.3

Propagation

Distance and statistical context

Luminosity distance: 1,000 (-490, +640) Mpc
Redshift: 0.2
Astrophysical probability: Not reported by GWOSC
False-alarm rate: Not reported by GWOSC

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW151012

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

JSON record GWOSC event page