← All launches
Launch SuccessfulSoviet Space Program
Soyuz 11A510: US-AO 1
US-A (Upravlenniye Sputnik Aktivny) were active radar satellites for ocean surveillance. The high power consumtion of the active radar required a nuclear reactor as power source. The satellites were known as RORSAT in the west. The US-AO series consisted of satellites, which tested all the system components but the nuclear reactor. They were battery powered.
Monday, 27 December 1965
Soyuz 11A510
Mission Data
🇷🇺Soviet Space ProgramEst. 1931
Launch VehicleSoyuz 11A510
Vehicle FamilySoyuz
Vehicle Record2 of 2 launches (100%)
Provider TypeGovernment
Agency Record2288 successes / 168 failures (93%)
Success Streak17 consecutive
Mission TypeGovernment/Top Secret
Target OrbitLow Earth Orbit
Launch Pad31/6
Location🇰🇿 Baikonur Cosmodrome, Republic of Kazakhstan KAZ
Orbital Launches This Year#122
Agency Launches This Year#52
Launches From This Pad430
Launches From This Site1,565
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Soyuz 11A510
The Soyuz/Vostok, also known as just Soyuz or Vostok, or by its GRAU index, 11A510 was an interim expendable carrier rocket used by the Soviet Union in 1965 and 1966. Two were launched with prototype US-A satellites.
Launch Site
31/6 · 45.9960°N 63.5640°E
Launch data from Launch Library 2 by The Space Devs.