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. 1980
  4. 1980-034
// orbital launch

US-A reactor

Tsiklon-2 launch from Baikonur (Soviet Union) on April 29, 1980, carrying 1 payload. GCAT records the launch as a success.

April 29, 1980 · 11:40 UTCLaunch 1980-034Launch no. 2,311 in the log
RocketTsiklon-2
SpaceportBaikonurpad LC90
OutcomeSuccess
Launch agencyRVSNSoviet Union

Flight

Date and time (UTC)
April 29, 1980, 11:40
Launch designation
1980-034
Mission
US-A reactor
Flight name
Kosmos-1176
Vehicle flight ID
51052-103

Orbit and payload

Initial apogee
969 km
Payload mass to orbit
4.3 t
Payloads
1
GCAT launch code
OS

Payloads

PayloadDesignationOwnerMission typeMassFate
Kosmos-11761980-034ANORAD 11788Soviet NavySignals intelligence1,154 kgIn orbit

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