Ctrl K

© Polaris Intelligence 2026

Privacy Terms Admin

Kosmos-421

retired

Космос-421

Technology DemonstrationLEOCOSPAR 1971-044ALaunched 5/19/1971

Mission & Launch

Launch Mission: Kosmos-421 Mission
Launch Vehicle: Kosmos 11K63
Launch Date: 5/19/1971
Last Contact: 11/5/1971

Orbit & Mass

Orbit Class: LEO
Altitude: 355.5 km
Inclination: 70.98 deg
Dry Mass: 200 kg
Total Mass: 200 kg

Payload Classification

Mission Type: Technology Demonstration
Payload Category: CAL
Payload Class: D

Organizations

Operator: Proto-Vozdhusnoy Oborony
Manufacturer: Yuzhnoye

Registry

COSPAR ID: 1971-044A
UN Registration: A/AC.105/INF.234