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GW200208_130117 | Gravitational-wave mergers | Apex Andromeda | Apex Andromeda

Black Holes/Gravitational-wave mergers/GW200208_130117

ConfirmedBinary Black Hole

GWOSC compact-binary event

GW200208_130117

Both component-mass lower bounds exceed 3 solar masses

Primary mass37.7 M☉

Secondary mass27.4 M☉

ObservedFeb 8, 2020

Event identity

Classification and release

ID: gwtc:GW200208_130117
Event name: GW200208_130117
Classification: Binary Black Hole
Composition status: Confirmed
Confidence boundary: Both component-mass lower bounds exceed 3 solar masses
Catalog: GWTC-3-confident
Preferred event version: v1
Observed at: Saturday, February 8, 2020 at 1:01:17 PM UTC UTC
GPS time: 1,265,202,095.9

Source-frame posterior

Component and remnant masses

Primary mass: 37.7 (-6.2, +9.3) M☉
Secondary mass: 27.4 (-7.3, +6.3) M☉
Remnant mass: 62.5 (-6.4, +7.5) M☉
Effective spin: -0.07
Network SNR: 10.8

Propagation

Distance and statistical context

Luminosity distance: 2,230 (-850, +1,020) Mpc
Redshift: 0.4
Astrophysical probability: 0.99
False-alarm rate: 0.0003

Provenance

Official source record

GWOSC · GWTC-3-confident

GW200208_130117

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

JSON record GWOSC event page