Soviet Space ProgramMolniya-M 2BL43/3 (43L), Plesetsk Cosmodrome, Russian Federation
US-K 6
Launched
April 11, 1977
Image: Jonathan Space Report
Summary
US-K 6 launched on a Soviet Space Program Molniya-M 2BL from 43/3 (43L), Plesetsk Cosmodrome, Russian Federation on April 11, 1977. It was Soviet Space Program's 1,102nd launch, 22nd this year and humanity's 1,943rd orbital launch attempt. It was the 84th Molniya-M 2BL flight and the 3rd this year. The payload was bound for Elliptical Orbit (Elliptical). The tracked orbit of Kosmos-903, one of 9 catalogued objects, from April 16, 1977, was 604 × 39,769 km inclined 62.8°. 9 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Molniya-M 2BL · Soviet Space Program
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Elliptical Orbit (Elliptical)
- Milestone
- 84th Molniya-M 2BL flight · 3rd this yearSoviet Space Program's 1,102nd launch22nd this yearhumanity's 1,943rd orbital launch attempt28th orbital launch attempt this year
Flight preview
Orbit: as tracked
Kosmos-903 · NORAD 9911 · 1977-027 · Space-Track · tracking 1 of 9 objects
Show the numbers for orbit elements
- Object
- COSMOS 903
- Object ID
- 1977-027A
- Epoch
- 1977-04-16 03:41:23 UTC
- Mean motion
- 2.00594783 rev/day
- Eccentricity
- 0.7373574
- Inclination
- 62.8319°
- Ascending node
- 172.7253°
- Arg. of perigee
- 318.2555°
- Mean anomaly
- 4.6345°
- Element set
- 999
- Rev at epoch
- 11
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Elliptical. Ascent drawn from padside's representative profile.
Catalogued objects
9 catalogued: 1 payload, 2 rocket stages, 5 debris, 1 component; 3 still in orbit
- Kosmos-903 · NORAD 9911 · re-entered August 4, 2014
Molniya-M No. 160 Blok-I · re-entered June 6, 1977
Blok-L · in orbit
Data from J. McDowell, planet4589.org
About this launch
Early warning satellite
Pad

43/3 (43L), Plesetsk Cosmodrome, Russian Federation
60th launch from 43/3 (43L), 6th this year · 541st from Plesetsk Cosmodrome, Russian Federation
234 launches from this pad · 1,688 from Plesetsk Cosmodrome, Russian Federation
5 days 23 hours after the previous launch from this pad
All launches from Plesetsk Cosmodrome, Russian FederationOpen in maps
Questions
When did US-K 6 launch?
US-K 6 launched on April 11, 1977. The time is known to the hour, not the minute.
Where can I watch US-K 6?
No webcast is on record for this launch.
What rocket launched US-K 6?
Molniya-M 2BL, flown by Soviet Space Program. Molniya-M 2BL spec sheet
Where did US-K 6 launch from?
43/3 (43L), Plesetsk Cosmodrome, Russian Federation.
What orbit did US-K 6 reach?
The tracked orbit of Kosmos-903, one of 9 catalogued objects, from April 16, 1977, was 604 × 39,769 km inclined 62.8°.
How many satellites did US-K 6 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
