Pioneer 5
Part of the Pioneer program
Pioneer 5 was designed to provide the first map of the interplanetary magnetic field. The vehicle functioned for a record 106 days, and communicated with Earth from a record distance of 36.2 million km.
Spacecraft
Spin stabilized. Four deployed/fixed solar paddles providing 16 watts.
| Country of Origin | United States |
| Customer/User | USAF, NASA |
| Manufacturer(s) | TRW |
| Size | 0.66 m diameter sphere, 1.4 m span across solar panels |
| Orbit | Solar orbit, 0.806 x 0.995 AU |
| Design Life | 1 month |
Launch Facts
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| Name | Int'l Desig. | Date | Site | Vehicle | Orbit | Mass(kg) |
| Notes | ||||||
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| Pioneer 5 | 1960-[Alpha]1 | 3/11/60 | ESMC | Thor Able | Solar | 43 |
| Solar research | ||||||
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