Vanguard TV5
| Vanguard TV5 | |||||||
|---|---|---|---|---|---|---|---|
| Phase : E1 / Status : destroyed | |||||||
 Vanguard TV5 is mounted on the rocket |
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| Type: | Research satellite | ||||||
| Country: |
 United States
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| Organization: |
 NASA
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| COSPAR designation : | 1958-F04 | ||||||
| Mission dates | |||||||
| Start date: | April 29, 1958, 02:53 UTC | ||||||
| Starting place: | Cape Canaveral , LC-18A | ||||||
| Launcher: | Vanguard TV-5 | ||||||
| Mission duration: | 262 seconds | ||||||
| End date: | April 29, 1958, 02:57 UTC | ||||||
| Orbit data | |||||||
| Origin of coordinates: | Earth (planned) | ||||||
| General spacecraft data | |||||||
| Takeoff mass: | 9.75 kg | ||||||
| Dimensions: | Metal sphere 50.8 cm in diameter | ||||||
| Manufacturer: | Naval Research Laboratory | ||||||
| Others | |||||||
| Previous mission: |
Sputnik (3) | ||||||
| Subsequent mission: |
Sputnik 3 | ||||||
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Vanguard TV5 (aka 20in X-ray # 1 was) an American research satellite from the Vanguard project of NASA . It got lost in a false start.
technology
Vanguard TV5 was built by the Naval Research Laboratory (NRL). It weighed only about 10 kg and was about 50 cm in diameter. The electrical energy supply came from batteries and solar cells.
task
The aim of the satellite project was to station a fully instrumented 10 kg X-ray satellite in Earth orbit in order to study differences in the intensity of solar X-rays in the wavelength range from 1 to 8 Å and to carry out further measurements of the space environment. The mission was, apart from the different wavelengths, identical to the Vanguard Lyman Alpha satellites (Vanguard SLV).
Start process
Vanguard TV5 was on 29 April 1958 on a Vanguard - carrier rocket from the Cape Canaveral AFS started. Due to an error in the electrics of the second stage, the ignition signal for the third stage was not passed on, which means that the two stages do not separate from each other. The satellite was lost.
See also
Web links
- Vanguard TV5 in the NSSDCA Master Catalog (English)
- Vanguard (20in X-Ray) at Gunter's Space Page (English)
