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		<doi>10.1007/s11071-017-3485-2</doi>
		<issn>0924-090X</issn>
		<label>lattes: 7340081273816424 2 FerreiraPradWint:2017:NuMaEn</label>
		<citationkey>FerreiraPradWint:2017:NuMaEn</citationkey>
		<title>A numerical mapping of energy gains in a powered Swing-By maneuver</title>
		<year>2017</year>
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		<author>Ferreira, Alessandra Ferraz da Silva,</author>
		<author>Prado, Antonio Fernando Bertachini de Almeida,</author>
		<author>Winter, Othon C.,</author>
		<resumeid></resumeid>
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		<group>CMC-ETES-SESPG-INPE-MCTIC-GOV-BR</group>
		<group>DIDMC-CGETE-INPE-MCTIC-GOV-BR</group>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Universidade Estadual Paulista (UNESP)</affiliation>
		<electronicmailaddress>aleferrazsilva@hotmail.com</electronicmailaddress>
		<electronicmailaddress></electronicmailaddress>
		<electronicmailaddress>ocwinter@gmail.com</electronicmailaddress>
		<journal>Nonlinear Dynamics</journal>
		<volume>89</volume>
		<number>2</number>
		<pages>791-818</pages>
		<secondarymark>A2_INTERDISCIPLINAR A2_ENGENHARIAS_III A2_ENGENHARIAS_I B1_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA B1_ENGENHARIAS_IV B1_ENGENHARIAS_II B3_ASTRONOMIA_/_FÍSICA</secondarymark>
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		<keywords>Astrodinâmica, Swing-By.</keywords>
		<abstract>The present paper studies the effects of a powered Swing-By maneuver, considering the particular and important situations where there are energy gains for the spacecraft. The objective is to map the energy variations obtained from this maneuver as a function of the three parameters that identify the pure gravity Swing-By with a fixed mass ratio (angle of approach, periapsis distance and velocity at periapsis) and the three parameters that define the impulsive maneuver (direction, magnitude and the point where the impulse is applied). The mathematical model used here is the version of the restricted three-body problem that includes the Lemaître regularization, to increase the accuracy of the numerical integrations. It is developed and implemented by an algorithm that obtains the energy variation of the spacecraft with respect to the largest primary of the system in a maneuver where the impulse is applied inside the sphere of influence of the secondary body, during the passage of the spacecraft. The point of application of the impulse is a free parameter, as well as the direction of the impulse. The results make a complete map of the possibilities, including the maximum gains of energy, but also showing alternatives that can be used considering particularities of the mission.</abstract>
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		<language>en</language>
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