flown missionSuccess

Soyuz U | Yantar-4KS1M 1

Soviet Space Program31/6 — Baikonur Cosmodrome, Republic of KazakhstanJul 10, 1991, 14:00 UTC

The launch vehicle successfully inserted its payload(s) into the target orbit(s).

mission

Name: Yantar-4KS1M 1
Type: Government/Top Secret
Target orbit: Low Earth Orbit (LEO)

The Neman or Yantar-4KS1M satellites were improved versions of the Terilen elctro-optical reconnaissance satellites. They were transmitting the data via Potok (Geizer) relay satellites.

schedule

NET (no earlier than): Jul 10, 1991, 14:00 UTC
Window opens: Jul 10, 1991, 14:00 UTC
Window closes: Jul 10, 1991, 14:00 UTC
Last updated: Jun 14, 2023, 03:41 UTC

vehicle & provider

Rocket: Soyuz U
Family: Soyuz
Provider: Soviet Space Program
Type: Government
Country: RUS

launch site

Pad: 31/6
Location: Baikonur Cosmodrome, Republic of Kazakhstan
Country: KAZ
Timezone: Asia/Qyzylorda
Coordinates: 45.9960, 63.5640