2026-244Latest orbital launch: Falcon 9 · Starlink Group 15-16 · Oct 27, 2026 · VandenbergLaunch record →
sci-techmaventhe history of spaceflight, in data
sci-techmaven
Launch logAdvertise
  1. Home
  2. Launches
  3. 1971
  4. 1971-047
// orbital launch

DS-P1-Yu No. 47

Kosmos 11K63 launch from Plesetsk (Soviet Union) on May 27, 1971, carrying 1 payload. GCAT records the launch as a success.

May 27, 1971 · 11:59 UTCLaunch 1971-047Launch no. 1,220 in the log
RocketKosmos 11K63
SpaceportPlesetskpad LC133/3
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
May 27, 1971, 11:59
Launch designation
1971-047
Mission
DS-P1-Yu No. 47
Flight name
Kosmos-423
Vehicle flight ID
64657-133

Orbit and payload

Initial perigee
272 km
Initial apogee
485 km
Inclination
71.0°
Payload mass to orbit
0.200 t
Payloads
1
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Kosmos-4231971-047ANORAD 5246Proto-Vozdhusnoy OboronyCalibration200 kgReentered (orbital decay) · Nov 26, 1971

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