Orbit parameters for earth resources satellites were determined. A proper choice of the orbit parameters is essential so as to reap better results from the mission. The basic concepts of satellite orbits, such as the elements of orbit and effects of the asphericity of the earth on orbital elements were explained. Expressions for calculating the orbit period, orbit regression, apseline rotation were given. The factors affecting the life of the orbit are discussed. The relationship between orbit life time versus altitude for Aryabhata and Rohini type of satellite configuration was also included. Various types of orbits such as sun synchronous, recursive, repetitive coverage were examined. The requirements of different payloads and their influence on the selection of orbit are summarized. The equations describing sun synchronism and ground trace were stated. Using these equations design charts relating the various parameters for different cases were drawn. Use of the charts was illustrated with a few examples.
Orbit Selection for Earth Resources Satellites
1977
14 pages
Report
No indication
English
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