Explorer 7
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| Organization: | Army Ballistic Missile Agency |
| Major contractors: | Jet Propulsion Laboratory |
| Mission type: | Earth Science |
| Satellite of: | Earth |
| Launch: | 13 October 1959 at 15:36:00 UTC |
| Launch vehicle: | Jupiter-C |
| Decay: | |
| Mission duration: | 2 years |
| Mass: | 41.5 kg |
| NSSDC ID: | 1959-009A |
| Webpage: | [1] |
| Orbital elements | |
|---|---|
| Semimajor axis: | - |
| Eccentricity: | .034693 |
| Inclination: | 50.27° |
| Orbital period: | 101.38m |
| Apogee: | 1073km |
| Perigee: | 573km |
| Orbits: | - |
| Instruments | |
| Geiger-Mueller detector : | Detection of cosmic rays |
| Wire grid array : | Micrometeorite detection |
| Acoustic detector : | Micrometeorite detection |
Explorer 7 was launched October 13, 1959. It was designed to measure solar X-ray and Lyman-alpha flux, trapped energetic particles, and heavy primary cosmic rays.
Launched by a Juno rocket from Cape Canaveral, it was in a 573 km by 1073 km orbit and inclined 50.27°.
The satellite weighed 41.5 kg, was 75 cm high and 75 cm wide. Powered by solar cells it also carried 15 nickel-cadmium batteries around its equator.
It transmitted data continuously through to February 1961 and went dead August 24, 1961. It is still in orbit.[1]
[edit] Notes and references
- ^ U.S. Space Objects Registry. Retrieved on 2006-12-07.
[edit] External links
- Explorer 7 at NSSDC
| Previous Mission: Explorer 6 |
Explorer program | Next Mission: Explorer 8 |
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