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Design Of A Representative Low Earth Orbit Satellite To Improve Existing Debris Models
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Book Synopsis Design of a Representative Low Earth Orbit Satellite to Improve Existing Debris Models by : S. Clark
Download or read book Design of a Representative Low Earth Orbit Satellite to Improve Existing Debris Models written by S. Clark and published by BiblioGov. This book was released on 2013-06 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper summarizes the process and methodologies used in the design of a small-satellite, DebriSat, that represents materials and construction methods used in modern day Low Earth Orbit (LEO) satellites. This satellite will be used in a future hypervelocity impact test with the overall purpose to investigate the physical characteristics of modern LEO satellites after an on-orbit collision. The major ground-based satellite impact experiment used by DoD and NASA in their development of satellite breakup models was conducted in 1992. The target used for that experiment was a Navy Transit satellite ( 40 cm, 35 kg) fabricated in the 1960 s. Modern satellites are very different in materials and construction techniques from a satellite built 40 years ago. Therefore, there is a need to conduct a similar experiment using a modern target satellite to improve the fidelity of the satellite breakup models. The design of DebriSat will focus on designing and building a next-generation satellite to more accurately portray modern satellites. The design of DebriSat included a comprehensive study of historical LEO satellite designs and missions within the past 15 years for satellites ranging from 10 kg to 5000 kg. This study identified modern trends in hardware, material, and construction practices utilized in recent LEO missions, and helped direct the design of DebriSat.
Book Synopsis Low Earth Orbit Satellite Design by : George Sebestyen
Download or read book Low Earth Orbit Satellite Design written by George Sebestyen and published by Springer. This book was released on 2018-02-06 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent decades, the number of satellites being built and launched into Earth’s orbit has grown immensely, alongside the field of space engineering itself. This book offers an in-depth guide to engineers and professionals seeking to understand the technologies behind Low Earth Orbit satellites. With access to special spreadsheets that provide the key equations and relationships needed for mastering spacecraft design, this book gives the growing crop of space engineers and professionals the tools and resources they need to prepare their own LEO satellite designs, which is especially useful for designers of small satellites such as those launched by universities. Each chapter breaks down the various mathematics and principles underlying current spacecraft software and hardware designs.
Book Synopsis Orbital Debris Environment for Spacecraft Designed to Operate in Low Earth Orbit by : Donald J. Kessler
Download or read book Orbital Debris Environment for Spacecraft Designed to Operate in Low Earth Orbit written by Donald J. Kessler and published by . This book was released on 1989 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The orbital debris environment model contained in this report is intended to be used by the spacecraft community for the design and operation of spacecraft in low Earth orbit. This environment, when combined with material dependent impact tests and spacecraft failure analysis, is intended to be used to evaluate spacecraft vulnerability, reliability, and shielding requirements. The environment represents a compromise between existing data to measure the environment, modeling of these data to predict the future environment, the uncertainty in both measurements and modeling, and the need to describe the environment so that various options concerning spacecraft design and operations can be easily evaluated.
Book Synopsis Design of Subsystems for a Representative Modern LEO Satellite by : Mark Werremeyer
Download or read book Design of Subsystems for a Representative Modern LEO Satellite written by Mark Werremeyer and published by . This book was released on 2013 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis discusses the design of subsystems for a representative modern low Earth Orbit (LEO) satellite. Specifically, the subsystems presented were designed for inclusion on DebriSat, a 50 kg satellite intended to be representative of modern LEO satellites ranging from 1-5000 kg terms of its components, materials used, and fabrication procedures. A LEO satellite survey was conducted that utilized the Union of Concerned Scientists (UCS) satellite database, with selected satellites emphasizing those launched after 1990 and next-generation satellites expected to launch in the near future. Specifically, fifty U.S. and European satellites were studied in detail to determine appropriate subsystems and components for use in a representative modern LEO satellite. As a result of this study and further consultation with subject-matter experts, particular components and subsystems were down selected for inclusion in the DebriSat design (e.g. sun sensors and reaction wheels are implemented rather than horizon sensors and passive magnetics due to their prevalence on the satellites surveyed). After these components were determined, they were integrated into complete subsystem designs. Finally, this thesis details how these representative components and subsystems are to be fabricated. Due to the prohibitively high costs of flight hardware, donated and rejected flight units are used in some instances, while non-functional emulations are used in others. DebriSat is a collaborative effort with NASA Orbital Debris Programs Office, the USAF Space and Missile Systems Center, and The Aerospace Corporation.
Book Synopsis Design of a Representative Leo Satellite and Hypervelocity Impact Test to Improve the Nasa Standard Breakup Model by : Sheldon Colby Clark
Download or read book Design of a Representative Leo Satellite and Hypervelocity Impact Test to Improve the Nasa Standard Breakup Model written by Sheldon Colby Clark and published by . This book was released on 2013 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the resulting debris field was tracked by the SSN and compared with the results of the breakup model, a noticeable discrepancy appeared. While the Standard Breakup Model successfully predicted the population of the Kosmos debris field, it did not successfully predict the population of the Iridium-33 debris field. This discrepancy was attributed to the fact that the satellite used in the primary hypervelocity impact test, SOCIT, was an obsolete 1960\U+2019\s satellite with outdated materials, components, and construction methods. Therefore, it was determined that the Standard Breakup Model should be updated to better predict the debris field of modern satellites and that a new ground based hypervelocity impact test needed to be conducted. This thesis addresses specific design considerations for a representative satellite currently being designed to improve the Standard Breakup Model and presents hypothetical hypervelocity impact test considerations that could be used to simulate an onorbit fragmentation.
Book Synopsis Limiting Future Collision Risk to Spacecraft by : National Research Council
Download or read book Limiting Future Collision Risk to Spacecraft written by National Research Council and published by National Academies Press. This book was released on 2011-11-16 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Derelict satellites, equipment and other debris orbiting Earth (aka space junk) have been accumulating for many decades and could damage or even possibly destroy satellites and human spacecraft if they collide. During the past 50 years, various National Aeronautics and Space Administration (NASA) communities have contributed significantly to maturing meteoroid and orbital debris (MMOD) programs to their current state. Satellites have been redesigned to protect critical components from MMOD damage by moving critical components from exterior surfaces to deep inside a satellite's structure. Orbits are monitored and altered to minimize the risk of collision with tracked orbital debris. MMOD shielding added to the International Space Station (ISS) protects critical components and astronauts from potentially catastrophic damage that might result from smaller, untracked debris and meteoroid impacts. Limiting Future Collision Risk to Spacecraft: An Assessment of NASA's Meteoroid and Orbital Debris Program examines NASA's efforts to understand the meteoroid and orbital debris environment, identifies what NASA is and is not doing to mitigate the risks posed by this threat, and makes recommendations as to how they can improve their programs. While the report identified many positive aspects of NASA's MMOD programs and efforts including responsible use of resources, it recommends that the agency develop a formal strategic plan that provides the basis for prioritizing the allocation of funds and effort over various MMOD program needs. Other necessary steps include improvements in long-term modeling, better measurements, more regular updates of the debris environmental models, and other actions to better characterize the long-term evolution of the debris environment.
Download or read book Space Debris written by Heiner Klinkrad and published by Springer Science & Business Media. This book was released on 2006-09-01 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: The future evolution of the debris environment will be forecast on the basis of traffic models and possible hazard mitigation practices. The text shows how large trackable objects will have re-entry pinpointed and predictions made on related risk assessment for possible ground impact. Models will also be described for meteoroids which are also a prevailing risk.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781730935381 Total Pages :100 pages Book Rating :4.9/5 (353 download)
Book Synopsis Conceptual Design of an Orbital Debris Collector by : National Aeronautics and Space Adm Nasa
Download or read book Conceptual Design of an Orbital Debris Collector written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-11-07 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current Lower Earth Orbit (LEO) environment has become overly crowded with space debris. An evaluation of types of debris is presented in order to determine which debris poses the greatest threat to operation in space, and would therefore provide a feasible target for removal. A target meeting these functional requirements was found in the Cosmos C-1B Rocket Body. These launchers are spent space transporters which constitute a very grave risk of collision and fragmentation in LEO. The motion and physical characteristics of these rocket bodies have determined the most feasible method of removal. The proposed Orbital Debris Collector (ODC) device is designed to attach to the Orbital Maneuvering Vehicle (OMV), which provides all propulsion, tracking, and power systems. The OMV/ODC combination, the Rocket Body Retrieval Vehicle (RBRV), will match orbits with the rocket body, use a spin table to match the rotational motion of the debris, capture it, despin it, and remove it from orbit by allowing it to fall into the Earth's atmosphere. A disposal analysis is presented to show how the debris will be deorbited into the Earth's atmosphere. The conceptual means of operation of a sample mission is described. Odonoghue, Peter (Editor) and Brenton, Brian and Chambers, Ernest and Schwind, Thomas and Swanhart, Christopher and Williams, Thomas Unspecified Center...
Book Synopsis A Layman's Look at Orbital Debris by : Armando R. Sanchezcastellanos
Download or read book A Layman's Look at Orbital Debris written by Armando R. Sanchezcastellanos and published by . This book was released on 1994 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial space debris is a new threatening reality. This thesis examines the requirement of acknowledging this threat as one of the major considerations in the design of Low Earth Orbit (LEO) satellites. The paper commences with a comprehensive view of the issue; the facts of the case are presented. It is necessary to understand the physical fundamentals of this multi-faceted problem in order to view it as a genuine threat to satellites. Following this introduction, an overview of how the problem is currently approached, from a political and technical standpoint, is discussed. Strategies for coping with the space debris issue are then presented. From these, the paper focuses on the most promising prospect for the future. It highlights the need for new and responsible satellite design philosophies in order to deal with the uncertainties of the LEO environment. The research effort concludes that space debris considerations must be incorporated at the earliest phases of satellite's design efforts and must be a continuing commitment throughout the operational life of a satellite.
Book Synopsis A Layman's Look at Orbital Debris by : Armando R. Sanchezcastellanos
Download or read book A Layman's Look at Orbital Debris written by Armando R. Sanchezcastellanos and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial space debris is a new threatening reality. This thesis examines the requirement of acknowledging this threat as one of the major considerations in the design of Low Earth Orbit (LEO) satellites. The paper commences with a comprehensive view of the issue; the facts of the case are presented. It is necessary to understand the physical fundamentals of this multi-faceted problem in order to view it as a genuine threat to satellites. Following this introduction, an overview of how the problem is currently approached, from a political and technical standpoint, is discussed. Strategies for coping with the space debris issue are then presented. From these, the paper focuses on the most promising prospect for the future. It highlights the need for new and responsible satellite design philosophies in order to deal with the uncertainties of the LEO environment. The research effort concludes that space debris considerations must be incorporated at the earliest phases of satellite's design efforts and must be a continuing commitment throughout the operational life of a satellite.
Download or read book Space Debris written by N.N. Smirnov and published by CRC Press. This book was released on 2001-11-29 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: When the first sputnik was launched and the space era began, few gave thought to the possible negative impact of putting satellites into orbit. In fact, man's space activity has led to the formation of a new media named "space debris," i.e. man-made objects and their fragments launched into space, currently inactive and no longer serving any useful purpose. Space Debris: Hazard Evaluation and Mitigation will appeal to readers unfamiliar with the issues, as well as experts and designers. It introduces concepts behind the problems of space ecology. The volume features actual data on the space debris environment; new mathematical models for space debris evolution, production and self-production; description of the existing software and concepts for shield design. The author also reviews methods of collision risk assessment, including the attitudes and inclinations of orbits, collision hazard evaluation and suggestions for preventative measures.
Book Synopsis Orbital Debris: A Chronology by : David S. F. Portree
Download or read book Orbital Debris: A Chronology written by David S. F. Portree and published by . This book was released on 1999 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 37-year (1961-1998) history of orbital debris concerns. Tracks orbital debris hazard creation, research, observation, experimentation, management, mitigation, protection, and policy. Includes debris-producing, events; U.N. orbital debris treaties, Space Shuttle and space station orbital debris issues; ASAT tests; milestones in theory and modeling; uncontrolled reentries; detection system development; shielding development; geosynchronous debris issues, including reboost policies: returned surfaces studies, seminar papers reports, conferences, and studies; the increasing effect of space activities on astronomy; and growing international awareness of the near-Earth environment.
Book Synopsis Design and Performance Analysis of Low Earth-orbit Satellite Systems by : Yebin Gong
Download or read book Design and Performance Analysis of Low Earth-orbit Satellite Systems written by Yebin Gong and published by . This book was released on 1994 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Repeating Ground Track Design for Low Earth Orbit Satellite by : Gurkan Gurdal
Download or read book Repeating Ground Track Design for Low Earth Orbit Satellite written by Gurkan Gurdal and published by . This book was released on 2010 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United Nations. General Assembly. Committee on the Peaceful Uses of Outer Space. Scientific and Technical Subcommittee Publisher : ISBN 13 : Total Pages :60 pages Book Rating :4.3/5 (91 download)
Book Synopsis Technical Report on Space Debris by : United Nations. General Assembly. Committee on the Peaceful Uses of Outer Space. Scientific and Technical Subcommittee
Download or read book Technical Report on Space Debris written by United Nations. General Assembly. Committee on the Peaceful Uses of Outer Space. Scientific and Technical Subcommittee and published by . This book was released on 1999 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Untrackable Orbital Debris Hazard Assessment and Shield Design for Satellites Operating in Low Earth Orbit by : Timothy D. Maclay
Download or read book Untrackable Orbital Debris Hazard Assessment and Shield Design for Satellites Operating in Low Earth Orbit written by Timothy D. Maclay and published by . This book was released on 1993 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Artificial Space Debris by : Nicholas L. Johnson
Download or read book Artificial Space Debris written by Nicholas L. Johnson and published by Krieger Publishing Company. This book was released on 1987 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
