ADE (Air Density Explorer)
ADE (Air Density Explorer) was a series of balloons, made from alternating layers of aluminum foil and
Mylar polyester film, placed in orbit to study the density of the upper
atmosphere and the relationship between solar radiation and air density.
The Air Density Explorers were developed at NASA Langley and had a diameter
of 3.7 meters (12 ft) and a mass of 7–9 kg. All were launched from
Vandenberg Air Force Base.
Although Explorer 9 was the first such
balloon launched (as well as being the first satellite placed in orbit by
an all-solid-propellant rocket and the first to be successfully launched
from Wallops Island), only its three identical
successors were officially designated "Air Density Explorers."
ADE was a subprogram of NASA's Explorer series.
||Dec. 19, 1963
||597 × 2,391 km × 78.6°
||Nov. 21, 1964
||530 × 2,498 km × 81.4°
||Aug. 8, 1968
||570 × 2,538 km × 80.7°
AND SPACE PROBES