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. 1973
  4. 1973-017
// orbital launch

Almaz OPS 1

Proton-K launch from Baikonur (Soviet Union) on April 3, 1973, carrying 2 payloads. GCAT records the launch as a success.

April 3, 1973 · 09:00 UTCLaunch 1973-017Launch no. 1,432 in the log
RocketProton-K
SpaceportBaikonurpad LC81/23
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
April 3, 1973, 09:00
Launch designation
1973-017
Mission
Almaz OPS 1
Flight name
Salyut-2
Vehicle flight ID
283-01

Orbit and payload

Initial apogee
374 km
Payload mass to orbit
19.1 t
Payloads
2
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Salyut-21973-017ANORAD 6398Machine Building Special Design BureauHuman spaceflight18.7 tReentered (orbital decay) · May 28, 1973
KSI1973-017Ministry of General Machine Building———

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