Spacelab 1 - Waves experiment in the OH emission layer

Astronomy and Astrophysics – Astronomy

Scientific paper

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Earth Observations (From Space), Hydroxyl Emission, Infrared Photography, Spaceborne Photography, Spacecraft Instruments, Spacelab, Systems Engineering, Upper Atmosphere

Scientific paper

The Spacelab 1 infrared camera which was used to investigate OH emission structures in the earth's upper atmosphere is described. The instrument consists of an f/0.95 25 mm focal lens, a photocathode amplifier tube, a 16 mm camera, and LEDs and photodiodes. To achieve a better sky-earth image, the instrument's optical axis was perpendicular to the longitudinal axis of the Shuttle, and was tilted 18 degrees to the wing plane. The instrument operated as anticipated for a total time of 528 minutes. Observations covered approximately 2 x 10 to the 8th sq km, or 40 percent of the earth's surface. The results of the observations will allow the plotting of a wave map of an 85-km altitude region and better knowledge of these structures may enable the correction of infrared photometric observations.

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