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Soviet Space ProgramTsiklon-290, Baikonur Cosmodrome, Republic of Kazakhstan

US-A 26

Launched

August 1, 1985

Launch Successful

Image: Ukrainian Space Agency

Summary

US-A 26 launched on a Soviet Space Program Tsiklon-2 from 90, Baikonur Cosmodrome, Republic of Kazakhstan on August 1, 1985. It was Soviet Space Program's 1,908th launch, 52nd this year and humanity's 2,969th orbital launch attempt. It was the 68th Tsiklon-2 flight and the 3rd this year. The payload was bound for low Earth orbit (LEO). Kosmos-1670, one of 6 catalogued objects, reached a 247 × 272 km orbit inclined 65.0°. 6 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
68th Tsiklon-2 flight · 3rd this yearSoviet Space Program's 1,908th launch52nd this yearhumanity's 2,969th orbital launch attempt65th orbital launch attempt this year

Flight preview

Orbit: as tracked

65.0°Inclination
247 × 272 kmPerigee × apogeefrom mean elements
89.6 minPeriodfrom mean elements
68.1°Ascending node
15051 d agoElement epoch1985-08-01 09:54 UTC · stale

Kosmos-1670 · NORAD 15930 · 1985-064 · Space-Track · tracking 1 of 6 objects

Show the numbers for orbit elements
Object
COSMOS 1670
Object ID
1985-064A
Epoch
1985-08-01 09:54:52 UTC
Mean motion
16.07932394 rev/day
Eccentricity
0.0018604
Inclination
65.0173°
Ascending node
68.065°
Arg. of perigee
231.3818°
Mean anomaly
128.5703°
Element set
999
Rev at epoch
2
B*
0.002746

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

6 catalogued: 1 payload, 3 debris, 2 components; 2 still in orbit

  • Kosmos-1670 · NORAD 15930 · in orbit

Data from J. McDowell, planet4589.org

About this launch

Active radar satellite for ocean surveillance powered by a nuclear reactor.

Pad

Map of 90

90, Baikonur Cosmodrome, Republic of Kazakhstan

50th launch from 90, 3rd this year · 748th from Baikonur Cosmodrome, Republic of Kazakhstan

74 launches from this pad · 1,565 from Baikonur Cosmodrome, Republic of Kazakhstan

104 days after the previous launch from this pad

Questions

When did US-A 26 launch?

US-A 26 launched on August 1, 1985. The time is known to the hour, not the minute.

Where can I watch US-A 26?

No webcast is on record for this launch.

What rocket launched US-A 26?

Tsiklon-2, flown by Soviet Space Program. Tsiklon-2 spec sheet

Where did US-A 26 launch from?

90, Baikonur Cosmodrome, Republic of Kazakhstan.

What orbit did US-A 26 reach?

Kosmos-1670, one of 6 catalogued objects, reached a 247 × 272 km orbit inclined 65.0°.

How many satellites did US-A 26 launch?

1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).