Explorer 39
NASA satellite of the Explorer program / From Wikipedia, the free encyclopedia
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Explorer 39, also known as AD-C (Air Density experiment-C), was a NASA scientific satellite belonging to series Air Density. It was launched on 8 August 1968, join with Explorer 40, from Launch Complex 5 of the Vandenberg Air Force Base, through a Scout launch vehicle.[3]
Quick Facts Names, Mission type ...
Names | AD-C Air Density experiment-C |
---|---|
Mission type | Air density |
Operator | NASA |
COSPAR ID | 1968-066A |
SATCAT no. | 03337 |
Spacecraft properties | |
Spacecraft | Explorer XXXIX |
Spacecraft type | Explorer |
Bus | AD |
Manufacturer | Langley Research Center |
Launch mass | 9.4 kg (21 lb) |
Dimensions | 3.6 m (12 ft) diameter |
Power | Solar cells and rechargeable batteries |
Start of mission | |
Launch date | 8 August 1968, 20:12:00 GMT[1] |
Rocket | Scout B (S-165C) |
Launch site | Vandenberg, SLC-5 |
Contractor | Vought |
Entered service | 8 August 1968 |
End of mission | |
Last contact | June 1971 |
Decay date | 22 June 1981 |
Orbital parameters | |
Reference system | Geocentric orbit[2] |
Regime | Low Earth orbit |
Perigee altitude | 670 km (420 mi) |
Apogee altitude | 2,538 km (1,577 mi) |
Inclination | 80.60° |
Period | 118.20 minutes |
Instruments | |
Nonsystematic Changes of Air Density Systematic Changes of Air Density | |
Explorer program |
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