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 604
// signals intelligence · 1973

Cosmos 604

Cosmos 604 was launched on October 29, 1973 aboard a Vostok 8A92M from Plesetsk. Latest status in GCAT: reentered (orbital decay) (Jan 19, 1992).

COSPAR 1973-080ANORAD 6907Soviet Union

Identity

Name in GCAT
Kosmos-604
Common name
Cosmos 604
Payload designation
Tselina-D (1) No. 5L
Other names
11F619 No. 510-34-155:RA
International designator
1973-080A
NORAD catalog number
6907
GCAT identifier
S06907
UN registration
A/AC.105/INF.281

Mission

Mission type
Signals intelligence
Use
Defense
Program
Tselina-D1
Owner
TsNII-108
Country
Soviet Union
Builder
Southern State Design Bureau
Platform (bus)
Tselina-D

Launch

Date
October 29, 1973 · 14:00 UTC
Launch record
1973-080Success
Spaceport
Plesetsk · pad LC43/4

Orbit and fate

Orbit class (GCAT)
LEO/I
Perigee
609 km
Apogee
637 km
Inclination
81.22°
Status
Reentered (orbital decay)
Status date
January 19, 1992
Last known active
1974
End of operations
1974

Size

Mass
1,750 kg
Dry mass
1,750 kg
Length
3.2 m
Diameter
1.30 m
Span
13.1 m

Source: GCAT payload, deep-space and lander catalogs, Jonathan C. McDowell (CC BY 4.0); Wikidata Q12753919 (CC0).