Soviet Space ProgramSoyuz 11A51031/6, Baikonur Cosmodrome, Republic of Kazakhstan
US-AO 1
Launched
December 27, 1965
Summary
US-AO 1 launched on a Soviet Space Program Soyuz 11A510 from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on December 27, 1965. It was Soviet Space Program's 160th launch, 52nd this year and humanity's 515th orbital launch attempt. It was the 1st Soyuz 11A510 flight. The payload was bound for low Earth orbit (LEO). One object from this launch is catalogued.
- Watch
- No webcast on record.
- Vehicle
- Soyuz 11A510 · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 1st Soyuz 11A510 flightSoviet Space Program's 160th launch52nd this yearhumanity's 515th orbital launch attempt122nd orbital launch attempt this year
Flight preview
Catalogued objects
1 catalogued: 1 payload; none still in orbit
- Kosmos-102 · NORAD 1867 · re-entered January 13, 1966
Data from J. McDowell, planet4589.org
About this launch
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.
Pad

31/6, Baikonur Cosmodrome, Republic of Kazakhstan
36th launch from 31/6, 24th this year · 127th from Baikonur Cosmodrome, Republic of Kazakhstan
430 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
10 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-AO 1 launch?
US-AO 1 launched on December 27, 1965. The time is known to the hour, not the minute.
Where can I watch US-AO 1?
No webcast is on record for this launch.
What rocket launched US-AO 1?
Soyuz 11A510, flown by Soviet Space Program. Soyuz 11A510 spec sheet
Where did US-AO 1 launch from?
31/6, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit was US-AO 1 going to?
Low Earth Orbit (LEO), a government/top secret mission.
How many satellites did US-AO 1 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).