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Author : Roger W. Luidens
Publisher :
ISBN 13 :
Total Pages : 52 pages
Book Rating : 4.:/5 (31 download)
Download or read book Round-trip Trajectories to Moons of Jupiter written by Roger W. Luidens and published by . This book was released on 1967 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 912 pages
Book Rating : 4.3/5 (91 download)
Download or read book NASA Technical Note written by and published by . This book was released on 1971 with total page 912 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward A. Willis (Jr.)
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.:/5 (31 download)
Download or read book Optimal Finite-thrust Transfer Between Planet-approach and Departure Asymptotes with Specified Intermediate Orbit written by Edward A. Willis (Jr.) and published by . This book was released on 1968 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 438 pages
Book Rating : 4.E/5 ( download)
Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1968 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 1152 pages
Book Rating : 4.F/5 ( download)
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1965 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.3/5 (91 download)
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1967 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1504 pages
Book Rating : 4.F/5 ( download)
Download or read book Monthly Catalog of United States Government Publications, Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Edward A. Willis
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Download or read book Two-burn Escape Maneuvers with an Intermediate Coasting Ellipse written by Edward A. Willis and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Superintendent of Documents
Publisher :
ISBN 13 :
Total Pages : 1464 pages
Book Rating : 4.:/5 (89 download)
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1338 pages
Book Rating : 4.3/5 (243 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles L. Zola
Publisher :
ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.:/5 (31 download)
Download or read book Minimum Propellant Consumption Round-trip Trajectories to Mars for Constant-thrust, Constant-specific-impulse Vehicles with Optimum Coasting Periods written by Charles L. Zola and published by . This book was released on 1966 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Laurence H. Fishbach
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (31 download)
Download or read book Approximate Trajectory Data for Missions to the Major Planets written by Laurence H. Fishbach and published by . This book was released on 1971 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Impulsive velocity increment ([delta] V) requirements for one-way trajectories from low-Earth orbit to the major planets are presented in the form of contour charts and tables. The given Earth-to-planet data also apply to return transfers, thereby permitting round trips to be analyzed. The charts relate propulsive effort to departure and arrival dates, travel times, and planetary configurations; they are designed for rapid identification of efficient mission trajectories. The tabular presentation includes hyperbolic speeds and a summary of orbit elements and geometry."--Page [1]
Author : Richard W. Longman
Publisher :
ISBN 13 :
Total Pages : 39 pages
Book Rating : 4.:/5 (782 download)
Download or read book Gravity Assist from Jupiter's Moons for Jupiter-orbiting Space Missions written by Richard W. Longman and published by . This book was released on 1968 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: The report describes results of an investigation of the propellant economies of using the gravitational attraction of Jupiter's four large moons to effect the transfer of a spacecraft into orbit around that planet. Use of a simplified model to approximate the maximum possible energy change as a function of the approach energy shows that the maximum energy loss from a flyby of Ganymede, the largest moon, is less than half that required to transfer from a high-thrust approach trajectory to an acceptable elliptical orbit. Thus, chemical retro-thrust is necessary to effect the transfer, and a moon swingby may not be justified. With a low-thrust trajectory approach, however, economical gravity assist from a moon is more promising. The lower approach energies of optimal low-thrust trajectories can be further reduced by retrothrusting, and guidance problems are more easily handled. A no-impulse capture could result in a final orbit with a one-year orbital period. Moreover, the relaxation of the required velocity endpoint conditions for low-thrust trajectories may allow significantly increased payloads or shorter flight times. (Author).
Author : W. E. Moeckel
Publisher :
ISBN 13 :
Total Pages : 40 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fast Interplanetary Missions with Low-thrust Propulsion Systems written by W. E. Moeckel and published by . This book was released on 1961 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A simple family of indirect-transfer trajectories between circular orbits is used to evaluate the mass ratio required to complete round-trip interplanetary missions using low-thrust propulsion systems. These trajectories, although not optimum, yielded very substantial reductions in total round-trip time for Mars missions with moderate increases in initial weight. For a powerplant specific weight [alpha] of 10 pounds per kilowatt of jet power, trip times were reduced from 1200 to 600 days, for a typical manned mission, with an initial weight increase of a factor of two. Comparison with a nuclear rocket with 1000-second specific impulse indicated that the electric-propulsion system required less initial weight for trip times as low as 550 days with [alpha]=10 and as low at 400 days with [alpha]=5 pounds per kilowatt. Further weight reductions would be expected with more nearly optimum trajectories.
Author : A V Labunsky
Publisher : CRC Press
ISBN 13 : 9789056990909
Total Pages : 296 pages
Book Rating : 4.9/5 (99 download)
Download or read book Multiple Gravity Assist Interplanetary Trajectories written by A V Labunsky and published by CRC Press. This book was released on 1998-11-26 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the results of twenty years; experience in the field of multipurpose flights, this monograph includes the complex routes of the trajectories of a number of bodies (e.g., space vehicles, comets) in the solar system. A general methodological approach to the research of flight schemes and the choice of optimal performances is developed. Additionally, a number of interconnected methods and algorithms used at sequential stages of such development are introduced, which allow the selection of a rational multipurpose route for a space vehicle, the design of multipurpose orbits, the determination of optimal space vehicle design, and ballistic performances for carrying out the routes chosen. Other topics include the practical results obtained from using these methods, navigation problems, near-to-planet orbits, and an overview of proven and new flight schemes.
Author : Bruce A. Conway
Publisher : Cambridge University Press
ISBN 13 : 113949077X
Total Pages : 313 pages
Book Rating : 4.1/5 (394 download)
Download or read book Spacecraft Trajectory Optimization written by Bruce A. Conway and published by Cambridge University Press. This book was released on 2010-08-23 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a long-overdue volume dedicated to space trajectory optimization. Interest in the subject has grown, as space missions of increasing levels of sophistication, complexity, and scientific return - hardly imaginable in the 1960s - have been designed and flown. Although the basic tools of optimization theory remain an accepted canon, there has been a revolution in the manner in which they are applied and in the development of numerical optimization. This volume purposely includes a variety of both analytical and numerical approaches to trajectory optimization. The choice of authors has been guided by the editor's intention to assemble the most expert and active researchers in the various specialities presented. The authors were given considerable freedom to choose their subjects, and although this may yield a somewhat eclectic volume, it also yields chapters written with palpable enthusiasm and relevance to contemporary problems.
