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GW241201_055758 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW241201_055758

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW241201_055758

Both component-mass lower bounds exceed 3 solar masses

Primary mass47 M☉

Secondary mass33 M☉

ObservedDec 1, 2024

Event identity

Classification and release

ID: gwtc:GW241201_055758
Event name: GW241201_055758
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: v1
Observed at: Sunday, December 1, 2024 at 5:57:58 AM UTC UTC
GPS time: 1,417,067,896.6

Source-frame posterior

Component and remnant masses

Primary mass: 47 (-12, +19) M☉
Secondary mass: 33 (-13, +13) M☉
Remnant mass: 76 (-15, +23) M☉
Effective spin: 0.13
Network SNR: 9

Propagation

Distance and statistical context

Luminosity distance: 7,100 (-3,800, +4,700) Mpc
Redshift: 1.03
Astrophysical probability: 0.92
False-alarm rate: 0.83

Provenance

Official source record

GWOSC · GWTC-5.0

GW241201_055758

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

JSON record GWOSC event page