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Owl
Owl
Owl
Credit: USAF
American earth ionosphere satellite. 2 launches, 1967.05.18 (Transit 16) to 1967.09.25 (Transit 17).

Status: Operational 1967. Gross mass: 60 kg (132 lb).

Originally to be part of the Explorer series, but instead orbited under the auspices of the US Army, Owl was designed to investigate a variety of low and high latitude phenomena and to make particularly powerful studies of auroral phenomena. Rice University built 2 spacecraft, scheduled for late 1968 launch by Scout boosters. The satellites were put into similar but not identical orbits at a high inclination with nominal altitudes of 930 and 1100 km and with coincident but anti-parallel lines of nodes. The two flight units (Rice also built a flight-worthy spare and prototypes of selected subsystems) were identical except that a large permanent magnet was in opposite directions. Each satellite had a flight mass of about 70 kg; cylindrical, it had a height of 0.84 m and a diameter of about 0.76 m. Power was obtained by 8.000 solar cells distributed on all sides.



Subtopics

Owl 1, 2 Research satellite built by Rice University for NASA.

Family: Earth, Ionosphere sat, Medium earth orbit. Country: USA. Launch Vehicles: Scout A, Scout. Agency: USN, Rice. Bibliography: 405.

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