Eccentric Orbits Download Ebook PDF Epub Online

Author : John Bloom
Publisher : Open Road + Grove/Atlantic
Release : 2016-06-07
Page : 560
Category : Technology & Engineering
ISBN 13 : 0802192823
Description :


“Good corporate drama . . . an enlightening narrative of how new communications infrastructures often come about.” —The Economist, “A Book of the Year 2016” In the early 1990s, Motorola developed a revolutionary satellite system called Iridium that promised to be its crowning achievement. Its constellation of 66 satellites in polar orbit was a mind-boggling technical accomplishment, surely the future of communication. The only problem was that Iridium the company was a commercial disaster. Only months after launching service, it was $11 billion in debt, burning through $100 million a month and crippled by baroque rate plans and agreements that forced calls through Moscow, Beijing, Fucino, Italy, and elsewhere. Bankruptcy was inevitable—the largest to that point in American history. And when no real buyers seemed to materialize, it looked like Iridium would go down as just a “science experiment.” That is, until Dan Colussy got a wild idea. Colussy, a former head of Pan-Am now retired and working on his golf game in Palm Beach, heard about Motorola’s plans to “de-orbit” the system and decided he would buy Iridium and somehow turn around one of the biggest blunders in the history of business. Impeccably researched and wonderfully told, Eccentric Orbits is a rollicking, unforgettable tale of technological achievement, business failure, the military-industrial complex, and one of the greatest deals of all time. “Deep reporting put forward with epic intentions . . . a story that soars and jumps and dives and digresses . . . [A] big, gutsy, exciting book.” —The Wall Street Journal, “A Top 10 Nonfiction Book of 2016” “Spellbinding . . . A tireless researcher, Bloom delivers a superlative history . . . A tour de force.” —Kirkus Reviews (starred review)


Author : Ken Goudsward
Publisher :
Release : 2020-04-04
Page : 76
Category : Poetry
ISBN 13 : 9781999216061
Description :


Eccentric Orbits highlights sci-fi poets from around the globe, celebrating the diversity and unity of the poetic form. Featuring the poetry of: Andrew Burton Deborah L. Kelly Erin J. Bauman Jane Jago Ken Goudsward Kimberly Nugent Mike Van Horn R. C. Larlham Stephanie Barr Thomas Van Horn Wendy Van Camp Lee Garratt


Author : Simon Kewin
Publisher : Stormcrow Books
Release : 2013-11-18
Page : 165
Category : Fiction
ISBN 13 :
Description :


An astronaut alone in the void of deep space. An alien starship capable of destroying all creation. A DNA Detective in search of the genetic code of The Beatles. A terrorist explosion trapped inside a bubble of space/time. A new life-form found in the quantum echoes of the void. Eccentric Orbits contains seventeen SF stories originally published between 1999 and 2011 and now collected together for the first time. Stories range from the very short up to novella length. Full Contents Terahertz * wolF emiT * The Armageddon Machine * rho-m10 * 22nd Century Genie * A Loop * Good Vibrations * Ten Million Years * Holy Mountains * Not Better Than One * Remembrance Day * Second War of the Worlds * The Thirteenth Labour * An Explosive Relationship * The Long Walk * Time Dilation * Live From The Continuing Explosion


Author : Jack David Fischer
Publisher :
Release : 1998
Page : 506
Category :
ISBN 13 :
Description :



Author :
Publisher :
Release : 2015
Page :
Category :
ISBN 13 :
Description :



Author : John Bloom
Publisher : Atlantic Books Ltd
Release : 2016-06-14
Page : 123
Category : Business & Economics
ISBN 13 : 1611859565
Description :


In the early 1990s, Motorola, the legendary American company, made a huge gamble on a revolutionary satellite telephone system called Iridium. Light-years ahead of anything previously put into space, and built on technology developed for Ronald Reagan's 'Star Wars,' Iridium's constellation of sixty-six satellites in six evenly spaced orbital planes meant that at least one satellite was always overhead. Iridium was a mind-boggling technical accomplishment, surely the future of communication. The only problem was that Iridium was also a commercial disaster. Only months after launching service, it was $11 billion in debt, burning through $100 million a month and bringing in almost no revenue. Bankruptcy was inevitable - the largest to that point in American history. It looked like Iridium would go down as just a 'science experiment.' That is, until Dan Colussy got a wild idea. Colussy, a former CEO of Pan Am, heard about Motorola's plans to 'de-orbit' the system and decided he would buy Iridium and somehow turn around one of the biggest blunders in the history of business. Eccentric Orbits masterfully traces the birth of Iridium and Colussy's tireless efforts to stop it from being destroyed, from meetings with his motley investor group, to the Clinton White House, to the Pentagon, to the hunt for customers in special ops, shipping, aviation, mining, search and rescue. Impeccably researched and wonderfully told, Eccentric Orbits is a rollicking, unforgettable tale of technological achievement, business failure, the military-industrial complex and one of the greatest deals of all time.


Author :
Publisher :
Release : 2005
Page : 35
Category : Telescopes
ISBN 13 :
Description :


For the past eight years, the small automated telescope Raven has been tested in detecting and tracking deep space objects. As the Raven has proven successful in tracking this regular and predictable orbit, its one arc-second accuracy made it a perfect candidate to attempt to accurately track the less predictable Highly Eccentric Orbit (HEO) objects. Ranging data was obtained from the Sirius satellite radio company for the Sirius3 satellite (Satellite Control Center (SCC) # 26626). This satellite was chosen for its long dwell time over the United States and for its favorable Raven tracking conditions. Angles-only data obtained from another Raven telescope located at the AMOS Remote Maui Experiment (RME) facility was used to track the satellite of interest. Then the Analytical Graphics, Inc. Satellite Tool Kit Orbit Determination (STK/OD) program was used to compare the accuracy of the orbit prediction using ranging tracking data from Sirius and angles-only tracking data from Raven. This paper shows the improvement in orbit determination uncertainty obtained by adding Raven observations to the ranging data. The Raven angles data improved the orbit plane uncertainty and eccentricity estimate differences by over 80% when used with the range observations.


Author : Howard D Curtis
Publisher : Elsevier
Release : 2009-10-26
Page : 744
Category : Technology & Engineering
ISBN 13 : 0080887848
Description :


Orbital Mechanics for Engineering Students, Second Edition, provides an introduction to the basic concepts of space mechanics. These include vector kinematics in three dimensions; Newton’s laws of motion and gravitation; relative motion; the vector-based solution of the classical two-body problem; derivation of Kepler’s equations; orbits in three dimensions; preliminary orbit determination; and orbital maneuvers. The book also covers relative motion and the two-impulse rendezvous problem; interplanetary mission design using patched conics; rigid-body dynamics used to characterize the attitude of a space vehicle; satellite attitude dynamics; and the characteristics and design of multi-stage launch vehicles. Each chapter begins with an outline of key concepts and concludes with problems that are based on the material covered. This text is written for undergraduates who are studying orbital mechanics for the first time and have completed courses in physics, dynamics, and mathematics, including differential equations and applied linear algebra. Graduate students, researchers, and experienced practitioners will also find useful review materials in the book. NEW: Reorganized and improved discusions of coordinate systems, new discussion on perturbations and quarternions NEW: Increased coverage of attitude dynamics, including new Matlab algorithms and examples in chapter 10 New examples and homework problems


Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
Release : 2018-06-19
Page : 30
Category :
ISBN 13 : 9781721288786
Description :


This study examined different constellation configurations to determine their suitability for the Mars Network. Some variations on the baseline case of four circular orbits were initially studied. Eccentric orbits were then used to determine their effects on several figures of merit that were selected as representative of the design goals. It was eventually found that the use of eccentric orbits in combination with circular orbits can improve aspects of some navigation and communication figures of merit. The ability to use orbits at different inclinations helps smooth coverage over the middle and upper latitudes for these figures of merit. This configuration has more variability than one consisting of circular orbits, so the occurrence of unfavorable arrangements also results in degradation of some figures of merit. Some cases were used which improved different figures of merit, so a solution could be chosen depending on specified requirements. Anderson, Rodney Jet Propulsion Laboratory


Author : Harper, W. E
Publisher :
Release : 1928
Page : 9
Category :
ISBN 13 :
Description :



Author : Christopher William Thomas Roscoe
Publisher :
Release : 2009
Page : 210
Category :
ISBN 13 : 9780494600115
Description :


The problem of reference trajectory reconfiguration and long-term uncontrolled recovery of a formation of spacecraft is considered in an eccentric orbit under the influence of the J2 perturbation. Reference trajectories considered are the Projected Circular Orbit, Along-Track Orbit, and their eccentric modifications. Reconfiguration is accomplished using two, finite-pulse thrusts, modeled as impulses. The state transition matrix (STM) is calculated by four methods: (i) analytically from the Hill-Clohessy-Wiltshire equations, (ii) numerical integration using a fourth-order Runge-Kutta method, (iii) from the fundamental matrix of the linearized equations of motion, and (iv) computing the STM for the relative mean orbital elements, the geometric method. Only the geometric method takes into account J 2, and it is shown to perform the transfers most accurately of all the methods. The methods are also applied to the reconfiguration maneuvers of the University of Toronto's CanX 4/5 formation flying mission.


Author : Ken Goudsward
Publisher :
Release : 2021-04-15
Page : 90
Category :
ISBN 13 : 9781989940204
Description :


Eccentric Orbits is back with more cosmic verse encompassing the globe, celebrating the diversity and unity of the poetic form. Featuring: CATHERINE BROGDON FARUK BUZHALA DALE CHAMPLIN DEBORAH L. KELLY PETER J. KING LEE GARRATT KEN GOUDSWARD ALEX HERNANDEZ AKUA LEZLI HOPE JULEIGH HOWARD-HOBSON JACK MASSA MICHELE MEKEL AMINATH NEENA CHROME OXIDE RK RUGG FABRICE STEPHAN LISA TIMPF WENDY VAN CAMP JEFF YOUNG


Author : Christopher W. T. Roscoe
Publisher :
Release : 2009
Page : 101
Category : Aerospace engineering
ISBN 13 :
Description :



Author : Stephanie Rose Muscat
Publisher :
Release : 2017
Page : 81
Category : Art
ISBN 13 : 9781366209979
Description :


This thesis deals with what the author terms hypnagogic hallucination; visions and illusions witnessed on the cusp of sleep.


Author : Flora Byars Lowes
American Institute of Aeronautics and Astronautics
Publisher :
Release : 1969
Page : 8
Category : Interplanetary navigation
ISBN 13 :
Description :



Author : Joseph Gordon Neelon
Publisher :
Release : 1998
Page : 236
Category :
ISBN 13 :
Description :



Author : G. Rondinelli
S. Carlini
Publisher :
Release : 1990
Page : 18
Category :
ISBN 13 :
Description :



Author : G. Bao
Erlend Østgaard
Publisher :
Release : 1993
Page : 29
Category :
ISBN 13 :
Description :



Author : Alan B. Jenkin
Publisher :
Release : 1990
Page :
Category :
ISBN 13 :
Description :



Author : Jaroslav Haas
Publisher : Springer Science & Business Media
Release : 2014-01-18
Page : 79
Category : Science
ISBN 13 : 3319036505
Description :


In this PhD thesis, which was nominated for publication in this series by the Astronomical Institute at Charles University, Prague, the author investigates the orbital evolution of an initially thin stellar disc around a supermassive black hole, considering various perturbative sources of gravity. His findings, obtained by both direct numerical N-body modelling and using standard perturbation methods, offer a viable theoretical explanation for the observed configuration of young stars in the Galactic Centre. This marks a significant contribution to a topic of great interest in contemporary astrophysics. The author also shows in his thesis that a secular instability (m = 1 mode) may occur in the embedding spherical cluster of old stars. This increases the richness of possible evolution scenarios of the embedding cluster and may lead to effective feeding of supermassive black holes through tidal disruption of stars on extremely eccentric orbits.