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Italian Space AgencyScout D-1San Marco platform, Broglio Space Center, Kenya

San Marco 4

Launched

February 18, 1974

Launch Successful

Image: NASA

Summary

San Marco 4 launched on an Italian Space Agency Scout D-1 from San Marco platform, Broglio Space Center, Kenya on February 18, 1974. It was Italian Space Agency's 2nd launch, 1st this year and humanity's 1,548th orbital launch attempt. It was the 5th Scout D-1 flight and the 1st this year. The payload was bound for low Earth orbit (LEO). The tracked orbit of San Marco 4, one of 2 catalogued objects, from March 14, 1974, was 243 × 909 km inclined 2.9°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Vehicle
Scout D-1 · Italian Space Agency
Booster
No booster details on record.
Mission
Earth Science · Low Earth Orbit (LEO)
Milestone
5th Scout D-1 flight · 1st this yearItalian Space Agency's 2nd launch1st this yearhumanity's 1,548th orbital launch attempt10th orbital launch attempt this year

Flight preview

Orbit: as tracked

2.9°Inclination
243 × 909 kmPerigee × apogeefrom mean elements
96.0 minPeriodfrom mean elements
254.8°Ascending node
19209 d agoElement epoch1974-03-14 00:00 UTC · stale

San Marco 4 · NORAD 7154 · 1974-009 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
1974-009A
Epoch
1974-03-14 00:00:40 UTC
Mean motion
14.99232483 rev/day
Eccentricity
0.0479388
Inclination
2.9032°
Ascending node
254.849°
Arg. of perigee
270.9976°
Mean anomaly
83.5213°
Element set
999
Rev at epoch
355
B*
0.000009104

Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.

Catalogued objects

2 catalogued: 1 payload, 1 rocket stage; none still in orbit

  • San Marco 4 · NORAD 7154 · re-entered May 4, 1976

Scout S190C Stage 4 · re-entered June 9, 1974

Data from J. McDowell, planet4589.org

About this launch

Italian satellite designed to study the density, composition and temperature of the equatorial upper atmosphere.

Pad

Map of San Marco platform

San Marco platform, Broglio Space Center, Kenya

6th launch from San Marco platform, 1st this year · 6th from Broglio Space Center, Kenya

9 launches from this pad · 9 from Broglio Space Center, Kenya

459 days after the previous launch from this pad

Questions

When did San Marco 4 launch?

San Marco 4 launched on February 18, 1974. The time is known to the hour, not the minute.

Where can I watch San Marco 4?

No webcast is on record for this launch.

What rocket launched San Marco 4?

Scout D-1, flown by Italian Space Agency. Scout D-1 spec sheet

Where did San Marco 4 launch from?

San Marco platform, Broglio Space Center, Kenya.

What orbit did San Marco 4 reach?

The tracked orbit of San Marco 4, one of 2 catalogued objects, from March 14, 1974, was 243 × 909 km inclined 2.9°.

How many satellites did San Marco 4 launch?

1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).