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 1399
// optical imaging · 1982

Cosmos 1399

Cosmos 1399 was launched on August 4, 1982 aboard a Soyuz-U from Baikonur. Latest status in GCAT: landed (Sep 16, 1982).

COSPAR 1982-078ANORAD 13399Soviet Union

Identity

Name in GCAT
Kosmos-1399
Common name
Cosmos 1399
Payload designation
Oktan No. 6L
Other names
Yantar'-4K1 No. 6L:P,11F693 No. 770-49-216:RA
International designator
1982-078A
NORAD catalog number
13399
GCAT identifier
S13399
UN registration
ST/SG/SER.E/072

Mission

Mission type
Optical imaging
Use
Defense
Program
Oktan
Owner
GUKOS
Country
Soviet Union
Builder
Central Specialized Design Bureau
Platform (bus)
Yantar'-4K1

Launch

Date
August 4, 1982 · 11:30 UTC
Launch record
1982-078Success
Rocket
Soyuz-U
Spaceport
Baikonur · pad LC31

Orbit and fate

Orbit class (GCAT)
LLEO/I
Perigee
162 km
Apogee
290 km
Inclination
64.89°
Status
Landed
Status date
September 16, 1982
Last known active
Sep 16, 1982
End of operations
Sep 16, 1982

Size

Mass
2,886 kg
Dry mass
2,886 kg
Total mass with attached objects
6,600 kg
Length
6.3 m
Diameter
2.70 m
Span
6.3 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q12753254 (CC0).