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Author : B. Chovitz
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (31 download)
Download or read book Gravity Gradients at Satellite Altitudes written by B. Chovitz and published by . This book was released on 1973 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter Köhnlein
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.F/5 ( download)
Download or read book On the Gravity Gradient at Satellite Altitudes written by Walter Köhnlein and published by . This book was released on 1967 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Walter J.. Koehnlein
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (268 download)
Download or read book On the Gravity Gradient at Satellite Altitudes written by Walter J.. Koehnlein and published by . This book was released on 1967 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 10 pages
Book Rating : 4.:/5 (444 download)
Download or read book The Nationalisation of Trinity College Dublin as a Propsed Solution of Irish University Education written by and published by . This book was released on 1900 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. L. Palmer
Publisher :
ISBN 13 :
Total Pages : 205 pages
Book Rating : 4.:/5 (227 download)
Download or read book Advanced Techniques for Analyzing and Improving Gravity Gradient Satellite Pointing Accuracies at High Orbital Altitudes. Volume I. Analysis written by J. L. Palmer and published by . This book was released on 1967 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study is directed toward the investigation of the problems, and possible solutions, associated with high pointing accuracies for gravity gradient systems at high orbital altitudes. Two major areas of investigation are considered. In the area of system response, consideration is given to determining the configuration parameters and design techniques which provide the greatest tolerance to disturbance torques. In the area of disturbances, the parameters and design techniques which minimize the amplitudes of the disturbance torques are considered. Specific objectives were to present fundamental gravity gradient characteristics and show methods of analysis. The problem areas are defined by presenting the detailed basic characteristics of a simple single body system and noting its deficiencies. A series of candidate designs are obtained by augmenting the single body system with design techniques which tend to remove its deficiencies. The analytical approach consists of studying the relationship of the system singularities with respect to harmonics of orbit rate. It is shown that for a system with properly located singularities, the influencing parameters in determining ultimate state response are the proper pole and zero locations and damping has a minor effect. The analysis is presented in Volume I and the derivation of dynamic equations, disturbance expressions, and station keeping parameters is contained in Volume II. (Author).
Author : P. C. Hughes
Publisher :
ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (223 download)
Download or read book Optimized Performance of an Articulated Gravity Gradient Satellite at Synchronous Altitude written by P. C. Hughes and published by . This book was released on 1966 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: A geometrically and dynamically symmetrical articulated satellite is considered for possible application at synchronous altitudes. The perturbing influence of solar radiation pressure on the two vertical hinged booms is studied, and the small-angle equations of motion derived. From these equations, both the transient and steady-state pointing performance are optimized through a computer search. Pointing errors of the order of two degrees, and damping times less than one orbit are shown to be possible for a weight expenditure of forty-five pounds (satellite payload weight = 250 pounds). (Author).
Author :
Publisher :
ISBN 13 :
Total Pages : 284 pages
Book Rating : 4.:/5 (31 download)
Download or read book Symposium on Passive Gravity-Gradient Stabilization, Ames Research Center, Moffett Field, California, May 10-11, 1965 written by and published by . This book was released on 1966 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Optimized Performance of an Articulated Gravity Gradient Satellite at Synchronous Altitude [microform] PDF Online Free](https://books.google.com/books/content/images/frontcover/63AqOAAACAAJ?fife=w200-h370)
Author : P. C. Hughes
Publisher : National Library of Canada
ISBN 13 :
Total Pages : 109 pages
Book Rating : 4.:/5 (223 download)
Download or read book Optimized Performance of an Articulated Gravity Gradient Satellite at Synchronous Altitude [microform] written by P. C. Hughes and published by National Library of Canada. This book was released on 1966 with total page 109 pages. Available in PDF, EPUB and Kindle. Book excerpt: A geometrically and dynamically symmetrical articulated satellite is considered for possible application at synchronous altitudes. The perturbing influence of solar radiation pressure on the two vertical hinged booms is studied, and the small-angle equations of motion derived. From these equations, both the transient and steady-state pointing performance are optimized through a computer search. Pointing errors of the order of two degrees, and damping times less than one orbit are shown to be possible for a weight expenditure of forty-five pounds (satellite payload weight = 250 pounds). (Author).
Author : J. L. Palmer
Publisher :
ISBN 13 :
Total Pages : 91 pages
Book Rating : 4.:/5 (227 download)
Download or read book Advanced Techniques for Analyzing and Improving Gravity Gradient Satellite Pointing Accuracies at High Orbital Altitudes. Volume Ii. Appendices written by J. L. Palmer and published by . This book was released on 1967 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. L. Palmer
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (652 download)
Download or read book Advanced Techniques for Analyzing and Improving Gravity Gradient Satellite Pointing Accuracies at High Orbital Altitudes written by J. L. Palmer and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert E. Fischell
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (455 download)
Download or read book Gravity-Gradient Stabilization Studies with the Dodge Satellite written by Robert E. Fischell and published by . This book was released on 1970 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The DODGE satellite was launched on 1 July 1967 into a near-synchronous orbit to demonstrate gravity-gradient stabilization at that high altitude and to experiment with various design parameters and damping techniques. This satellite was the first to be three-axis stabilized at high altitude using gravity-gradient techniques. It continues to function satisfactorily to the present date. Stabilization in pitch and roll to better than plus or minus 10 degrees has been obtained. The yaw stabilization of plus or minus 45 degrees has been fairly consistent; with the assistance of a small angular momentum flywheel, yaw accuracy of plus or minus 20 degrees was achieved. Magnetic damping of the sample-and-hold type and simulated hysteresis were both successful in damping librations. Efforts with the torsion-wire-suspended damper boom scheme were not successful, probably because of a mechanical bias in the device. A television camera system permitted observation of the boom bending under the influence of solar heating. Mechanical hysteresis in the boom bending was observed. (Author).
Author : Walter Köhnlein
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.F/5 ( download)
Download or read book Gravity Gradients on the Earth's Surface as Deduced from Satellite Orbits written by Walter Köhnlein and published by . This book was released on 1967 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Urs Marti
Publisher : Springer
ISBN 13 : 3319108379
Total Pages : 330 pages
Book Rating : 4.3/5 (191 download)
Download or read book Gravity, Geoid and Height Systems written by Urs Marti and published by Springer. This book was released on 2015-01-13 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume includes a selection of papers presented at the IAG international symposium "Gravity, Geoid and Height Systems 2012" (GGHS2012), which was organized by IAG Commission 2 “Gravity Field” with the assistance of the International Gravity Field Service (IGFS) and GGOS Theme 1 “Unified Global Height System”. The book summarizes the latest results on gravimetry and gravity networks, global gravity field modeling and applications, future gravity field missions. It provides a detailed compilation on advances in precise local and regional high-resolution geoid modeling, the establishment and unification of vertical reference systems, contributions to gravity field and mass transport modeling as well as articles on the gravity field of planetary bodies.
Author : United States. Congress. House. Committee on Government Operations
Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.3/5 ( download)
Download or read book Satellite Communications, 1964 written by United States. Congress. House. Committee on Government Operations and published by . This book was released on 1964 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pt. 1 discusses feasibility of joint military-civilian use of COMSAT global satellite system.
Author : United States. Congress. House Government Operations
Publisher :
ISBN 13 :
Total Pages : 824 pages
Book Rating : 4.F/5 ( download)
Download or read book Satellite Communications - 1964 written by United States. Congress. House Government Operations and published by . This book was released on 1964 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Congress
Publisher :
ISBN 13 :
Total Pages : 1410 pages
Book Rating : 4.:/5 (319 download)
Download or read book Reports and Documents written by United States. Congress and published by . This book was released on 1967 with total page 1410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.3/5 (243 download)
Download or read book Significant Achievements in Space Communications and Navigation written by and published by . This book was released on 1958 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
