2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
sci-techmaven
Launch logAdvertise
  1. Home
  2. Spacecraft
  3. Cosmos 646
// communications · 1974

Cosmos 646

Cosmos 646 was launched on April 23, 1974 aboard a Kosmos 11K65M from Plesetsk. Latest status in GCAT: in orbit.

COSPAR 1974-024FNORAD 7270Soviet Union

Identity

Name in GCAT
Kosmos-646
Common name
Cosmos 646
Payload designation
Strela-1M Blok 09 No. 6
International designator
1974-024F
NORAD catalog number
7270
GCAT identifier
S07270
UN registration
A/AC.105/INF.294

Mission

Mission type
Communications
Use
Defense
Program
Strela-1M
Country
Soviet Union
Builder
OKB-10 (Reshetnev)
Platform (bus)
Strela-1 11F625

Launch

Date
April 23, 1974 · 14:14 UTC
Launch record
1974-024Success
Spaceport
Plesetsk · pad LC132/2

Orbit and fate

Orbit class (GCAT)
LEO/I
Perigee
1,404 km
Apogee
1,485 km
Inclination
74.01°
Status
In orbit
Last known active
1975
End of operations
1975

Size

Mass
60 kg
Dry mass
60 kg
Length
0.8 m
Diameter
0.80 m
Span
0.8 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q12907762 (CC0).