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Book NASA Technical Note

    Book Details:
  • Author :
  • Publisher :
  • Release : 1970
  • ISBN :
  • Pages : 1004 pages

Download or read book NASA Technical Note written by and published by . This book was released on 1970 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Analysis of Trajectory Parameters for Probe and Round trip Missions to Venus

Download or read book Analysis of Trajectory Parameters for Probe and Round trip Missions to Venus written by James F. Dugan and published by . This book was released on 1960 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: For one-way transfers between Earth and Venus, charts are obtained that show velocity, time, and angle parameters as functions of the eccentricity and semilatus rectum of the Sun-focused vehicle conic. From these curves, others are obtained that are useful in planning one-way and round-trip missions to Venus. The analysis is characterized by circular coplanar planetary orbits, successive two-body approximations, impulsive velocity changes, and circular parking orbits at 1.1 planet radii. For round trips the mission time considered ranges from 65 to 788 days, while wait time spent in the parking orbit at Venus ranges from 0 to 467 days. Individual velocity increments, one-way travel times, and departure dates are presented for round trips requiring the minimum total velocity increment. For both single-pass and orbiting Venusian probes, the time span available for launch becomes appreciable with only a small increase in velocity-increment capability above the minimum requirement. Velocity-increment increases are much more effective in reducing travel time for single-pass probes than they are for orbiting probes. Round trips composed of a direct route along an ellipse tangent to Earth's orbit and an aphelion route result in the minimum total velocity increment for wait times less than 100 days and mission times ranging from 145 to 612 days. Minimum-total-velocity-increment trips may be taken along perihelion-perihelion routes for wait times ranging from 300 to 467 days. These wait times occur during missions lasting from 640 to 759 days.

Book Technical Publications Announcements with Indexes

Download or read book Technical Publications Announcements with Indexes written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 1556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Planetary Atmospheres

Download or read book Planetary Atmospheres written by and published by . This book was released on 1965 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book U S  Government Research Reports

Download or read book U S Government Research Reports written by and published by . This book was released on 1962 with total page 1170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Technical Report   Jet Propulsion Laboratory  California Institute of Technology

Download or read book Technical Report Jet Propulsion Laboratory California Institute of Technology written by Jet Propulsion Laboratory (U.S.) and published by . This book was released on 1961 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Guide to Annual Subject Index for Technical Publications Announcements  Apr  Dec  1962

Download or read book Guide to Annual Subject Index for Technical Publications Announcements Apr Dec 1962 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1962 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Index of N A S A Technical Publications

Download or read book Index of N A S A Technical Publications written by United States. National Aeronautics and Space Administration and published by . This book was released on 1960 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalog of United States Government Publications  Cumulative Index

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 1980 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book A Selected Listing of NASA Scientific and Technical Reports for

Download or read book A Selected Listing of NASA Scientific and Technical Reports for written by and published by . This book was released on 1960 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Planetary Atmospheres a Continuing Biblio  Graphy  Jan  1962   Feb  1965

Download or read book Planetary Atmospheres a Continuing Biblio Graphy Jan 1962 Feb 1965 written by and published by . This book was released on 1965 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Monthly Catalog of United States Government Publications

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 1961 with total page 1284 pages. Available in PDF, EPUB and Kindle. Book excerpt: