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GW240630_101703 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW240630_101703

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW240630_101703

Both component-mass lower bounds exceed 3 solar masses

Primary mass28.6 M☉

Secondary mass21.6 M☉

ObservedJun 30, 2024

Event identity

Classification and release

ID: gwtc:GW240630_101703
Event name: GW240630_101703
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, June 30, 2024 at 10:17:03 AM UTC UTC
GPS time: 1,403,777,841.4

Source-frame posterior

Component and remnant masses

Primary mass: 28.6 (-4.8, +7.6) M☉
Secondary mass: 21.6 (-5.3, +5) M☉
Remnant mass: 48 (-5.5, +7.5) M☉
Effective spin: -0.04
Network SNR: 10.6

Propagation

Distance and statistical context

Luminosity distance: 3,200 (-1,400, +1,500) Mpc
Redshift: 0.54
Astrophysical probability: 0.99
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-5.0

GW240630_101703

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

JSON record GWOSC event page