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GW190728_064510 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190728_064510

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190728_064510

Both component-mass lower bounds exceed 3 solar masses

Primary mass12.5 M☉

Secondary mass8 M☉

ObservedJul 28, 2019

Event identity

Classification and release

ID: gwtc:GW190728_064510
Event name: GW190728_064510
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: v2
Observed at: Sunday, July 28, 2019 at 6:45:10 AM UTC UTC
GPS time: 1,248,331,528.5

Source-frame posterior

Component and remnant masses

Primary mass: 12.5 (-2.3, +6.9) M☉
Secondary mass: 8 (-2.6, +1.7) M☉
Remnant mass: 19.7 (-1.4, +4.4) M☉
Effective spin: 0.13
Network SNR: 13.1

Propagation

Distance and statistical context

Luminosity distance: 880 (-380, +260) Mpc
Redshift: 0.18
Astrophysical probability: 1
False-alarm rate: 0

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190728_064510

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

JSON record GWOSC event page