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 673
// signals intelligence · 1974

Cosmos 673

Cosmos 673 was launched on August 16, 1974 aboard a Vostok 8A92M from Plesetsk. Latest status in GCAT: reentered (orbital decay) (Jun 1, 1991).

COSPAR 1974-066ANORAD 7417Soviet Union

Identity

Name in GCAT
Kosmos-673
Common name
Cosmos 673
Payload designation
Ikar No. 1L
Other names
Tselina-D No. 1L:P,11F619 No. 450-53-301:RA
International designator
1974-066A
NORAD catalog number
7417
GCAT identifier
S07417
UN registration
A/AC.105/INF.301

Mission

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

Launch

Date
August 16, 1974 · 03:41 UTC
Launch record
1974-066Success
Spaceport
Plesetsk · pad LC43/4

Orbit and fate

Orbit class (GCAT)
LEO/I
Perigee
604 km
Apogee
635 km
Inclination
81.22°
Status
Reentered (orbital decay)
Status date
June 1, 1991
Last known active
1975
End of operations
1975

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 Q12907769 (CC0).