Italian Space AgencyScout D-1San Marco platform, Broglio Space Center, Kenya
San Marco 4
Launched
February 18, 1974
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
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

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).
