Skip to content

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Menu

Missions Planets Black Holes 3D Map Agencies Blog About Sign in

Acquiring mission data

Missions Planets Black Holes 3D Map Agencies Blog About apexandromeda.com

This is an independent informational project and is not affiliated with, endorsed by, or sponsored by NASA, ESA, JAXA, Roscosmos, CNSA, ISRO, CSA, or any other space agency. Agency names, logos, and other marks are used for identification where permitted by their respective usage policies.

A passion project from the team behind Apex Rental Pro.

GW190803_022701 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW190803_022701

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW190803_022701

Both component-mass lower bounds exceed 3 solar masses

Primary mass37.7 M☉

Secondary mass27.6 M☉

ObservedAug 3, 2019

Event identity

Classification and release

ID: gwtc:GW190803_022701
Event name: GW190803_022701
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: Saturday, August 3, 2019 at 2:27:01 AM UTC UTC
GPS time: 1,248,834,439.8

Source-frame posterior

Component and remnant masses

Primary mass: 37.7 (-6.7, +9.8) M☉
Secondary mass: 27.6 (-8.5, +7.6) M☉
Remnant mass: 62.1 (-7.6, +11.2) M☉
Effective spin: -0.01
Network SNR: 9.3

Propagation

Distance and statistical context

Luminosity distance: 3,190 (-1,470, +1,630) Mpc
Redshift: 0.54
Astrophysical probability: 0.9738
False-alarm rate: 0.073

Provenance

Official source record

GWOSC · GWTC-2.1-confident

GW190803_022701

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

JSON record GWOSC event page