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Author: Christopher D. Noble Publisher: ISBN: Category : Languages : en Pages : 168
Book Description
New concepts in aerospace travel have renewed interest in modeling and compensating for the effects of upper atmospheric drag. In particular, the SDI constellation requires strict orbital element maintenance. This thesis is a qualitative verification of a propellant longevity model for low-altitude earth orbit satellites verification of a propellant longevity model for low altitude earth orbit satellites doing intrack micro-thrusting to overcome atmospheric drag. Pertinent orbital mechanics and atmospheric concepts are reviewed. The model and its computer program are described. The results of trend and sensitivity analysis reasonableness tests are presented. Finally suggestions for use are made. Many plots of mission life predictions are presented. The model computer program and sample input and output are also included. Keywords: Low earth orbits; Drag compensation; Micro thrusting; Satellite orbital lifetime model; Propellent longevity; Orbital element design.
Author: Christopher D. Noble Publisher: ISBN: Category : Languages : en Pages : 168
Book Description
New concepts in aerospace travel have renewed interest in modeling and compensating for the effects of upper atmospheric drag. In particular, the SDI constellation requires strict orbital element maintenance. This thesis is a qualitative verification of a propellant longevity model for low-altitude earth orbit satellites verification of a propellant longevity model for low altitude earth orbit satellites doing intrack micro-thrusting to overcome atmospheric drag. Pertinent orbital mechanics and atmospheric concepts are reviewed. The model and its computer program are described. The results of trend and sensitivity analysis reasonableness tests are presented. Finally suggestions for use are made. Many plots of mission life predictions are presented. The model computer program and sample input and output are also included. Keywords: Low earth orbits; Drag compensation; Micro thrusting; Satellite orbital lifetime model; Propellent longevity; Orbital element design.
Author: Publisher: ISBN: Category : Aeronautics Languages : en Pages : 652
Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author: Wade H. Shafer Publisher: Springer Science & Business Media ISBN: 1461305993 Category : Science Languages : en Pages : 411
Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1 957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 32 (thesis year 1987) a total of 12,483 theses titles from 22 Canadian and 176 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 32 reports theses submitted in 1987, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Author: Rainer Sandau Publisher: Springer Science & Business Media ISBN: 3642035019 Category : Technology & Engineering Languages : en Pages : 476
Book Description
This book was compiled from contributions given at the 7th IAA Symposium on Small Satellites for Earth Observation, May 4–8, 2009, Berlin (IAA – International Academy of Astronautics). From the 15 sessions for oral presentations and two poster sessions, 52 contributions were selected which are representative for the new developments and trends in the area of small satellites for Earth observation. They re ect the potentials of a diversity of missions and related technologies. This may be based on national projects or international co-operations, single satellites of constellations, pico-, nano-, micro- or mini-satellites, developed by companies, research institutions or agencies. The main focus is on new missions to monitor our Earth’s resources (Part I), and the environment in which our Earth is emb- ded (Part II). Part III deals with distributed space systems, a unique feature of small satellites and in most cases impractical to do with large satellites. Here we concentrate on constellations of satellites with focus on future missions relying on co-operating satellites. For all the new developments and projects we need well e- cated specialists coming from the universities. Many universities included already the development and implementation of small satellites in their curriculum. The u- versity satellites chapter (Part IV) shows the high quality which is already reached by some of the universities worldwide.
Author: Harrington, Andrea J. Publisher: Edward Elgar Publishing ISBN: 1839105860 Category : Law Languages : en Pages : 256
Book Description
This astute and comprehensive book provides in-depth analysis of the space sector with an ‘insurance as governance’ approach. Chapters highlight and examine the key aspects of this important subject including space tourism, risk mitigation and insurance requirements. The author also gives a fresh and contemporary insight into topics such as the influences of international space law, international air law and US domestic space law.
Author: Christopher D. Noble
Author: Christopher D. Noble
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Author: Wade H. Shafer
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Author: K. N. Bhat
Author: Rainer Sandau
Author: David Wright
Author: Harrington, Andrea J.