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. 1977
  4. 1977-025
// orbital launch

DS-P1-I No. 18

Kosmos 11K63 launch from Plesetsk (Soviet Union) on April 5, 1977, carrying 1 payload. GCAT records the launch as a success.

April 5, 1977 · 10:30 UTCLaunch 1977-025Launch no. 1,934 in the log
SpaceportPlesetskpad LC133/3
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
April 5, 1977, 10:30
Launch designation
1977-025
Mission
DS-P1-I No. 18
Flight name
Kosmos-901
Vehicle flight ID
45739-186

Orbit and payload

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

Payloads

PayloadDesignationOwnerMission typeMassFate
Kosmos-9011977-025ANORAD 9905Proto-Vozdhusnoy OboronyCalibration200 kgReentered (orbital decay) · Jun 28, 1978

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