Launch Success
Liftoff Time (GMT)
12:00:00
Thursday January 14, 1971
Cosmos 391 is a satellite of the DS-P1 constellation. The satellites of the latter are used to test different systems for future Soviet military satellites. It will test mainly new methods of communication with the ground, new radar systems and modes of power supply by nuclear battery.
Low Earth Orbit
1 Payload
300 kilograms
Manufacturer
OKB-586Rocket
Height: 29.59m
Payload to Orbit
LEO: 400 kg
GTO: 0 kg
Liftoff Thrust
636 Kilonewtons
Fairing
Diameter: 1.65m
Height: 2.99m
Stages
2
72nd
Mission
1st
Mission of 1971
549th
Mission
2nd
Mission of 1971
2nd
Orbital launch attempt