Journal
Scientific and technical journal «Priborostroenie»
UDK520.224.2. 224.4
Issue:5 (56)
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MAINTAINING THERMAL STABILITY OF THE EARTH REMOTE-SENSING SPACE-BASED TELESCOPE BY THE LENS HOOD PARAMETERS OPTIMIZATION
Annotation
The problem of thermal stability of space-based telescope for remote sensing of the Earth is discussed. The concept of background temperature of the telescope pupil is introduced to characterize deviation of the instrument thermal regime from the initial value realized in the stand-by mode with closed pupil cap. A formula is derived to describe dependence of desired operating temperature of the lens hood on present background temperature at the entrance pupil of the telescope, and on the ratio of the lens hood length to the pupil diameter.
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