Cosmos 261

Launch Success

Liftoff Time (GMT)

23:55:00

Thursday December 19, 1968

Mission Details

Cosmos 261

Wiki

Cosmos 261 is a satellite of the DS-U 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

347 kilograms

Rocket

Retired
Cosmos-2 (63SM)

Active 1965 to 1977

OKB-586 logo

Manufacturer

OKB-586

Rocket

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

Launch Site

Site 133/3

Plesetsk Cosmodrome, Russia

Fastest Turnaround

3 days 23 hours

Stats

Cosmos-2I


35th

Mission

16th

Mission of 1968

OKB-586


373rd

Mission

80th

Mission of 1968

1968


126th

Orbital launch attempt