Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan
US-A 27
Launched
August 23, 1985
Image: Ukrainian Space Agency
Summary
US-A 27 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on August 23, 1985. It was Soviet Space Program's 1,917th launch, 61st this year and humanity's 2,980th orbital launch attempt. It was the 69th Tsiklon-2 flight and the 4th this year. The payload was bound for low Earth orbit (LEO). Kosmos-1677, one of 4 catalogued objects, reached a 252 × 274 km orbit inclined 65.0°. 4 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
- 69th Tsiklon-2 flight · 4th this yearSoviet Space Program's 1,917th launch61st this yearhumanity's 2,980th orbital launch attempt76th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-1677 · NORAD 15986 · 1985-075 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- COSMOS 1677
- Object ID
- 1985-075A
- Epoch
- 1985-08-24 01:23:09 UTC
- Mean motion
- 16.0666774 rev/day
- Eccentricity
- 0.0016087
- Inclination
- 65.0007°
- Ascending node
- 345.1045°
- Arg. of perigee
- 237.8756°
- Mean anomaly
- 121.8952°
- 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
4 catalogued: 1 payload, 3 components; 1 still in orbit
- Kosmos-1677 · NORAD 15986 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Active radar satellite for ocean surveillance powered by a nuclear reactor.
Pad
90, Baikonur Cosmodrome, Republic of Kazakhstan
51st launch from 90, 4th this year · 751st from Baikonur Cosmodrome, Republic of Kazakhstan
74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan
22 days after the previous launch from this pad
All launches from Baikonur Cosmodrome, Republic of KazakhstanOpen in maps
Questions
When did US-A 27 launch?
US-A 27 launched on August 23, 1985. The time is known to the hour, not the minute.
Where can I watch US-A 27?
No webcast is on record for this launch.
What rocket launched US-A 27?
Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet
Where did US-A 27 launch from?
90, Baikonur Cosmodrome, Republic of Kazakhstan.
What orbit did US-A 27 reach?
Kosmos-1677, one of 4 catalogued objects, reached a 252 × 274 km orbit inclined 65.0°.
How many satellites did US-A 27 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).