UV camera for observations of the earth's upper atmosphere and low-orbit space objects from the MIR manned orbital station

Physics – Optics

Scientific paper

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Scientific paper

Absorption of solar UV-radiation in the 250 - 280 nm band by ozone layer leads to very low background of radiation scattered by the Earth at altitudes above 80 km. It makes possible to observe from near-Earth orbit with high sensitivity processes in upper atmosphere caused by engines of rockets and spacecrafts during their maneuvering or entering into dense layers of atmosphere. The main characteristics and application of the high sensitive imaging UV-camera specially designed for observations on-board the <> manned orbital station (OS) are described. The camera works in the 200 - 350 nm spectral region and includes catadioptric objective, narrow band filters, special UV-sensitive image intensifier, photographic camera or TV-camera. Images are registered with sensitivity of 4 (DOT) 10(superscript 16) w/cm(superscript 2) in FOV of 12 degrees with angular resolution of 1,5'. The camera was delivered on-board the <> OS in July 1992 and successfully worked during 5 years. Examples of observations of different space objects are given.

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