Journal
Scientific and technical journal «Priborostroenie»
UDK78.25.15.43
Issue:10 (58)
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MANEUVERING BY SPACECRAFT TO IMPROVE CHARACTERISTICS OF THE EARTH SURFACE AREA OBSERVATION
Annotation
The problem of increasing the number of a spacecraft passes above a given observation area for several days a row through the spacecraft maneuvering is considered. Analytical expressions relating duration of observation time gap in days and the latitudinal width characteristic of the swath are presented. The gap areas based on quasi-synchronous orbits are constructed. It is shown that different conditions of observation of a given region (observation gap expressed in days or the time of maximal break in the observation) are realized depending on relation between the mutually simple numbers q and p characterizing the quasi-synchronous orbit. The speed control pulse to change period of the spacecraft revolution is evaluated and orbits allowing an improvement of observation conditions are specified.
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