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. Launches
  3. 1974
  4. 1974-018
// orbital launch

Soyuz 7K-TM No. 71-EPSA

Soyuz-U launch from Baikonur (Soviet Union) on April 3, 1974, carrying 1 payload. GCAT records the launch as a success.

April 3, 1974 · 07:30 UTCLaunch 1974-018Launch no. 1,551 in the log
RocketSoyuz-U
SpaceportBaikonurpad LC31
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
April 3, 1974, 07:30
Launch designation
1974-018
Mission
Soyuz 7K-TM No. 71-EPSA
Flight name
Kosmos-638
Vehicle flight ID
A 15000-009

Orbit and payload

Initial apogee
353 km
Payload mass to orbit
6.8 t
Payloads
1
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Kosmos-6381974-018ANORAD 7234Ministry of General Machine BuildingHuman spaceflight2,850 kgLanded · Apr 13, 1974

Source: GCAT launch list and payload catalogs, Jonathan C. McDowell (CC BY 4.0). Orbit values are the initial orbit reported for the launch.