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3.2 Compare direct injection into Mars transfer (eg. from HWK) with a stop off at lunar circular orbit.

3.2 Compare direct injection into Mars transfer (eg. from HWK) with a stop off at lunar circular orbit.

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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3.2 Compare direct injection into Mars transfer (e.g. from HWK) with a stop off at lunar circular orbit. Example. Elliptical transfer to L5, ahead/ behind moon in lunar orbit, circularize and start again. For lunar orbit, use Earth 59 radii. Use only Earth gravity. 3.2A Compute difference: perigee velocity for transfer to Ra = 59. Earth Radii from 215 nmi. 3.ЗА 3.2B Compute velocity to stop off at lunar circular orbit. 3.3В 3.20 Add heliocentric transfer velocity to two values above and compare with HWK answer for direct departure from Earth orbit. What's the difference in velocity changes (km/sec) for the two approach routes? 3.3C
Transcribed Image Text:3.2 Compare direct injection into Mars transfer (e.g. from HWK) with a stop off at lunar circular orbit. Example. Elliptical transfer to L5, ahead/ behind moon in lunar orbit, circularize and start again. For lunar orbit, use Earth 59 radii. Use only Earth gravity. 3.2A Compute difference: perigee velocity for transfer to Ra = 59. Earth Radii from 215 nmi. 3.ЗА 3.2B Compute velocity to stop off at lunar circular orbit. 3.3В 3.20 Add heliocentric transfer velocity to two values above and compare with HWK answer for direct departure from Earth orbit. What's the difference in velocity changes (km/sec) for the two approach routes? 3.3C
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