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 1635
// communications · 1985

Cosmos 1635

Cosmos 1635 was launched on March 21, 1985 aboard a Kosmos 11K65M from Plesetsk. Latest status in GCAT: in orbit.

COSPAR 1985-023ANORAD 15617Soviet Union

Identity

Name in GCAT
Kosmos-1635
Common name
Cosmos 1635
Payload designation
Strela-1M Blok 37 No. 1
International designator
1985-023A
NORAD catalog number
15617
GCAT identifier
S15617
UN registration
ST/SG/SER.E/128

Mission

Mission type
Communications
Use
Defense
Program
Strela-1M
Owner
GUKOS
Country
Soviet Union
Builder
NPO Applied Mechanics
Platform (bus)
Strela-1 11F625

Launch

Date
March 21, 1985 · 00:08 UTC
Launch record
1985-023Success
Spaceport
Plesetsk · pad LC132/2

Orbit and fate

Orbit class (GCAT)
LEO/I
Perigee
1,473 km
Apogee
1,513 km
Inclination
74.05°
Status
In orbit
Last known active
1987
End of operations
1987

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 Q12753373 (CC0).