2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
  1. Home
  2. Spacecraft
  3. Cosmos 1771
// signals intelligence · 1986

Cosmos 1771

Cosmos 1771 was launched on August 20, 1986 aboard a Tsiklon-2 from Baikonur. Latest status in GCAT: in orbit.

COSPAR 1986-062ANORAD 16917Soviet Union

Identity

Name in GCAT
Kosmos-1771
Common name
Cosmos 1771
Payload designation
US-A No. 344 ROCh
International designator
1986-062A
NORAD catalog number
16917
GCAT identifier
S16917
UN registration
ST/SG/SER.E/152

Mission

Mission type
Signals intelligence
Use
Defense
Program
US-A
Owner
VMF
Country
Soviet Union
Builder
TsNII Kometa
Platform (bus)
Buk reactor

Launch

Date
August 20, 1986 · 12:58 UTC
Launch record
1986-062Success
Rocket
Tsiklon-2
Spaceport
Baikonur · pad LC90

Orbit and fate

Orbit class (GCAT)
LLEO/I
Perigee
250 km
Apogee
263 km
Inclination
65.00°
Status
In orbit
Last known active
Oct 15, 1986
End of operations
Oct 15, 1986

Size

Mass
1,154 kg
Dry mass
1,154 kg
Total mass with attached objects
4,300 kg
Length
5.8 m
Diameter
1.30 m
Span
5.8 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q12907490 (CC0).