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Soviet Space ProgramMolniya-M 2BL31/6, Baikonur Cosmodrome, Republic of Kazakhstan

Prognoz-4

Launched

December 22, 1975

Launch Successful

Image: Jonathan Space Report

Summary

Prognoz-4 launched on a Soviet Space Program Molniya-M 2BL from 31/6, Baikonur Cosmodrome, Republic of Kazakhstan on December 22, 1975. It was Soviet Space Program's 976th launch, 90th this year and humanity's 1,780th orbital launch attempt. It was the 69th Molniya-M 2BL flight and the 11th this year. The payload was bound for Elliptical Orbit (Elliptical). Prognoz-4, one of 3 catalogued objects, reached a 239 × 472 km orbit inclined 65.0°. 3 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
Heliophysics · Elliptical Orbit (Elliptical)
Milestone
69th Molniya-M 2BL flight · 11th this yearSoviet Space Program's 976th launch90th this yearhumanity's 1,780th orbital launch attempt129th orbital launch attempt this year

Flight preview

Orbit: as tracked

65.0°Inclination
239 × 472 kmPerigee × apogeefrom mean elements
91.5 minPeriodfrom mean elements
157.8°Ascending node
18561 d agoElement epoch1975-12-22 03:31 UTC · stale

Prognoz-4 · NORAD 8510 · 1975-122 · Space-Track · tracking 1 of 3 objects

Show the numbers for orbit elements
Object
PROGNOZ 4
Object ID
1975-122A
Epoch
1975-12-22 03:31:35 UTC
Mean motion
15.73769722 rev/day
Eccentricity
0.0173036
Inclination
65.0393°
Ascending node
157.7929°
Arg. of perigee
66.4808°
Mean anomaly
295.4373°
Element set
999
Rev at epoch
34341
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

3 catalogued: 1 payload, 1 rocket stage, 1 component

  • Prognoz-4 · NORAD 8510 · left Earth orbit December 22, 1975

Molniya-M 41-575 Blok-I · re-entered February 22, 1976

Data from J. McDowell, planet4589.org

About this launch

Prognoz is a series of research satellites to study solar activity and its influence on Earth's magnetosphere and ionosphere.

Pad

Map of 31/6

31/6, Baikonur Cosmodrome, Republic of Kazakhstan

169th launch from 31/6, 13th this year · 442nd from Baikonur Cosmodrome, Republic of Kazakhstan

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

5 days 16 hours after the previous launch from this pad

Questions

When did Prognoz-4 launch?

Prognoz-4 launched on December 22, 1975. The time is known to the hour, not the minute.

Where can I watch Prognoz-4?

No webcast is on record for this launch.

What rocket launched Prognoz-4?

Molniya-M 2BL, flown by Soviet Space Program. Molniya-M 2BL spec sheet

Where did Prognoz-4 launch from?

31/6, Baikonur Cosmodrome, Republic of Kazakhstan.

What orbit did Prognoz-4 reach?

Prognoz-4, one of 3 catalogued objects, reached a 239 × 472 km orbit inclined 65.0°.

How many satellites did Prognoz-4 launch?

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