[PDF] On The Long Period Luni Solar Effect In The Motion Of An Artificial Satellite eBook

Author : Peter Musen
Publisher :
Page : 1 pages
File Size : 26,48 MB
Release : 1961
Category :
ISBN :

GET BOOK

Two systems of formulas are presented for the determination of the long period perturbations caused by the Sun and the Moon in the motion of an artificial satellite. The first system can be used to determine the lunar effect for all satellite. The second method is more convenient for finding the lunar effect for close satellites and the solar effect for all satellites. Knowledge of these effects is essential for determining the stability of the satellite orbit. The basic equations of both systems are arranged in a form which permits the use of numerical integration. T e two theories are more accura e and more adaptable to the use of electronic machines than the analytical developments obtained previously (AD-249 292). (Author).

Author : William M. Kaula
Publisher :
Page : 20 pages
File Size : 22,15 MB
Release : 1962
Category : Artificial satellites
ISBN :

GET BOOK

Mathematical developments of the gravitational effects of the sun and moon on a close satellite were made. The developments were made as a result of attempts to adapt to a form convenient in analyzing close satellite orbits for terrestrial gravitational field variations. The disturbing functions are expressed in osculating Keplerian elements for use in equations of motion. (Author).

Author : Peter Musen
Publisher :
Page : 52 pages
File Size : 47,25 MB
Release : 1961
Category : Artificial satellites
ISBN :

GET BOOK

Lunar and solar perturbation influence on motion of artificial satellites, and computations of satellite perturbations for Vanguard I and Explorer VI satellites.

Author : Chong-Hung Zee
Publisher : Springer Science & Business Media
Page : 292 pages
File Size : 45,71 MB
Release : 2013-06-29
Category : Science
ISBN : 9400925735

GET BOOK

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.