Soviet Space ProgramTsiklon-290/19, Baikonur Cosmodrome, Republic of Kazakhstan
US-A 4
Launched
August 21, 1972
Image: Ukrainian Space Agency
Summary
US-A 4 launched on a Soviet Space Program Tsiklon-2 from 90/19, Baikonur Cosmodrome, Republic of Kazakhstan on August 21, 1972. It was Soviet Space Program's 684th launch, 52nd this year and humanity's 1,378th orbital launch attempt. It was the 12th Tsiklon-2 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). Kosmos-516, one of 3 catalogued objects, reached a 252 × 276 km orbit inclined 65.0°. 3 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Tsiklon-2 · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 12th Tsiklon-2 flight · 1st this yearSoviet Space Program's 684th launch52nd this yearhumanity's 1,378th orbital launch attempt72nd orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-516 · NORAD 6154 · 1972-066 · Space-Track · tracking 1 of 3 objects
Show the numbers for orbit elements
- Object
- COSMOS 516
- Object ID
- 1972-066A
- Epoch
- 1972-08-21 13:25:45 UTC
- Mean motion
- 16.06358 rev/day
- Eccentricity
- 0.001775
- Inclination
- 64.985°
- Ascending node
- 163.3897°
- Arg. of perigee
- 265.6052°
- Mean anomaly
- 94.304°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
3 catalogued: 1 payload, 2 components; 1 still in orbit
- Kosmos-516 · NORAD 6154 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Active radar satellite for ocean surveillance powered by a nuclear reactor.
Pad
90/19, Baikonur Cosmodrome, Republic of Kazakhstan
11th launch from 90/19, 1st this year · 360th from Baikonur Cosmodrome, Republic of Kazakhstan
16 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
239 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-A 4 launch?
US-A 4 launched on August 21, 1972. The time is known to the hour, not the minute.
Where can I watch US-A 4?
No webcast is on record for this launch.
What rocket launched US-A 4?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-A 4 launch from?
90/19, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-A 4 reach?
Kosmos-516, one of 3 catalogued objects, reached a 252 × 276 km orbit inclined 65.0°.
How many satellites did US-A 4 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).