Kosmos 423 (DS-P1-Yu #43), a Soviet radar-calibration target satellite launched on a Kosmos-2 from Plesetsk to support space-surveillance and early-warning radar testing.
- Outcome
- Success
- Orbit
- LEO
- Low Earth orbit
- Payload to orbit
- 200 kg
- Flight
- 77th
- of 126 Kosmos 11K63 flights
- Date and time
- 27 May 1971, 11:59 UTC
- Rocket
- Kosmos 11K63
- Builder
- Yuzhmash
- Launch site
- 133/3 (133L), Plesetsk Cosmodrome, Russian Federation
- Payload
- Test Target
- International designator
- 1971-047
- Launches in 1971
- 51st of 133
See it in orbit
Space Atlas shows the satellites and rocket stages from this launch in 3D.
View satellites in Space Atlas