Orbital Decay and Lifetime for Earth Satellites PDF Download
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Author: Rajesh Desai
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 162
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Book Description
Author: Rajesh Desai
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 162
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Book Description
Author: James E. Ladner
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 40
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Book Description
Author: D. G. King-Hele
Publisher:
ISBN:
Category :
Languages : en
Pages : 56
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Book Description
The accurate prediction of satellite decay dates some months or years ahead remains one of the most difficult and intractable problems of orbital mechanics, chiefly because the lifetime depends strongly on the future variations in air density, which are at present not accurately predictable. In this paper simple graphical methods are presented for estimating the future lifetime of an Earth satellite from its current rate of decay, using theory adapted to an atmosphere with a realistic variation of density with height. The effects of the departure of the Earth and atmosphere from spherical symmetry, and the variations of density with time, are approximated by specifying correction factors. Orbits which experience serious lunisolar perturbations call for numerical-integration methods, and the uses of the computer programs PROD and PTDEC are described. Despite the many uncertainties, the remaining lifetimes of most satellites should be predictable with an accuracy of + or - 10% by these methods, which are based on many years' experience in making the monthly decay predictions for the RAE Table of satellites. (Author).
Author: David Parry Rubincam
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 28
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309051258
Category : Science
Languages : en
Pages : 225
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Book Description
Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Author: H. B. Wackernagel
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 8
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Book Description
The decay of the orbit of most artificial earth satellites can be described by the simple formula log N = R (log delta P sub N + Q) N is the revolution number reckoned backwards from the revolution of decay and delta P sub N a quantity defined in the text. The parameters R and Q are correlated to the ratio m/F of mass and effective cross section and to the height of the perigee q, respectively. (Author).
Author: Frank Garcia (Jr.)
Publisher:
ISBN:
Category : Artificial satellites
Languages : en
Pages : 36
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722345068
Category :
Languages : en
Pages : 30
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Book Description
Long-term orbital lifetime predictions are analyzed. Predictions were made for three satellites: the Solar Max Mission (SMM), the Long Duration Exposure Facility (LDEF), and the Pegasus Boiler Plate (BP). A technique is discussed for determining an appropriate ballistic coefficient to use in the lifetime prediction. The orbital decay rate should be monitored regularly. Ballistic coefficient updates should be done whenever there is a significant change in the actual decay rate or in the solar activity prediction. Dreher, P. E. and Lyons, A. T. Marshall Space Flight Center ...
Author: D.G. King-Hele
Publisher: Springer
ISBN: 9780216922525
Category : Science
Languages : en
Pages : 291
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Book Description
Author: Committee on Space Debris
Publisher: National Academies Press
ISBN: 0309587166
Category : Science
Languages : en
Pages : 225
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Book Description
Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
