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Books > Professional & Technical > Energy technology & engineering > Heat transfer processes
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Theory of Geostationary Satellites (Hardcover, 1989 ed.)
Loot Price: R6,046
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Theory of Geostationary Satellites (Hardcover, 1989 ed.)
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Geostationary or equatorial synchronous satellites are a daily
reminder of our space efforts during the past two decades. The
nightly television satellite weather picture, the intercontinental
telecommunications of television transmissions and telephone
conversations, and the establishrnent of educational programs in
remote regions on Earth are constant reminders of the presence of
these satellites. As used here, the term 'geo stationary' must be
taken loosely because, in the long run, the satellites will not
remain 'stationary' with respect to an Earth-fixed reference frame.
This results from the fact that these satellites, as is true for
all satellites, are incessantly subject to perturbations other than
the central-body attraction of the Earth. Among the more
predominant pertur bations are: the ellipticity of the Earth's
equator, the Sun and Moon, and solar radiation pressure. Higher
harmonics of the Earth's potential and tidal effects also influence
satellite motion, but they are of second order when compared to the
predominant perturbations. This volume deals with the theory of
geostationary satellites. It consists of seven chapters. Chapter 1
provides a general discussion including a brief history of
geostationary satellites and their practical applications. Chapter
2 describes the Earth's gravitational potential field and the
methodology of solving the geostationary satellite problem. Chapter
3 treats the effect of Earth's equatorial ellipticity (triaxiality)
on a geostationary satellite. Chapter 4 deals with the effects of
the Sun and Moon on the satellite's motion while Chapter 5 presents
the combined influences of the Sun, Moon and solar radiation
pressure. Chapter 6 describes various station-keeping techniques
which may be used to make geostationary satellites practically
stationary. Finally, Chapter 7 describes the verification of the
theory developed in Chapters 3, 4 and 5 by utilizing the Early Bird
synchronous satellite observed data as well as its numerically
integrated results.
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