Download or read book Study of Optimization Methods for Space Debris Removal in Low Earth Orbits written by Ehsan Sadegui and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The develpment of the Master Thesis will include the following tasks:1- Brief review of policies and regulations of Inter-Agency Space Debris Coordination Committee. 2- Study of Orbital Debris Measurements such as ground based radars, optical based telescopes and space-basedtelescopes.3- Study and discussion of the methods for mitigation and remediation of space debris to reduce the risk to the current fleet spacecrafts 4- Study and developement of Debris Removal optimization models to find the optimal trajectory that minimizes fuel consumption. 5 - Generation and developement of optimization algorithmes for Traveling Salesman Problem (TSP) for active space debris removal.
Download or read book Orbital Debris written by Committee on Space Debris and published by National Academies Press. This book was released on 1995-06-21 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the beginning of space flight, the collision hazard in Earth orbit has increased as the number of artificial objects orbiting the Earth has grown. Spacecraft performing communications, navigation, scientific, and other missions now share Earth orbit with spent rocket bodies, nonfunctional spacecraft, fragments from spacecraft breakups, and other debris created as a byproduct of space operations. Orbital Debris examines the methods we can use to characterize orbital debris, estimates the magnitude of the debris population, and assesses the hazard that this population poses to spacecraft. Potential methods to protect spacecraft are explored. The report also takes a close look at the projected future growth in the debris population and evaluates approaches to reducing that growth. Orbital Debris offers clear recommendations for targeted research on the debris population, for methods to improve the protection of spacecraft, on methods to reduce the creation of debris in the future, and much more.
Download or read book Optimization of Space Debris Collision Avoidance Maneuver written by Priyatharsan Rajasekar and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The rising population of space debris poses a collision hazard to active satellites functioning in their orbits around the Earth. Often these satellites are required to perform orbital maneuvers to avoid high-energy collision with space debris. In addition to maintaining a safe proximity from the approaching debris during the time of closest approach, it is crucial to ensure that the satellite must then be brought back to its nominal orbit. This requires execution of additional orbital maneuvers and optimizing these maneuvers is important so that the impact on the mission life is minimal. Therefore, a framework of minimum-fuel orbital maneuvers in the context of finding an optimal trajectory considering both collision avoidance and orbit re-entry is desired. Most of the previous research work was focused only on optimization of orbital maneuver for collision avoidance. In this study, trajectory optimization for both maneuver processes is attempted using an evolutionary algorithm for which two methods: three-impulse method and two-impulse method, are developed and investigated. The three-impulse method is established as a two-stage maneuver process. In the first maneuver stage, a small impulse is applied to alter the course of the satellite in order to avoid the predicted collision. The second stage involves a bi-impulse maneuver that will take the satellite back to its nominal orbit after bypassing the obstacle. This bi-impulsive maneuver is estimated using the solutions of the well-known Lambert's problem. The design of the two-impulse method, on the other hand, is more straightforward which involves determining the optimal transfer orbit by just solving the Lambert's problem while the constraints are satisfied to an acceptable level. The proposed methods are tested for a high-risk collision predicted in a Low Earth Orbit while the test involves accurate numerical propagation taking into account the Earth zonal harmonics and the attraction from other bodies (Sun and Moon). The numerical simulations demonstrate that the conjunction could be mitigated satisfying the minimum-fuel objective and the satellite-safety constraints." --
Download or read book Space Debris Peril written by Matteo Madi and published by CRC Press. This book was released on 2020-11-10 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book provides up-to-date knowledge of space debris and valuable insights on how to grapple with this issue from legal, technical, economical and societal aspects. I would strongly recommend that everyone who is working on space development and utilizations and even non-specialists once read this book and think over how human being should be faced with this issue." –Prof. Shinichi Nakasuka, University of Tokyo, Japan Space Debris Peril: Pathways to Opportunities takes readers through the wide spectrum of problems created by space debris – including technical, political, legal and socio-economical aspects – and suggests ways to mitigate its negative consequences and create new opportunities. With chapter contributions from authors at world-renowned universities, private or public entities, and research institutes active in the field of space debris mitigation, space policy and law, risk and resilience, liability and insurance, this book provides a comprehensive introduction to the subject helping the reader to grasp the whole picture of the current space debris remediation challenges. This book will be of interest to the scientific communities, policy makers, business developers, (re)insurers and international standards developers for space operations and orbital debris mitigation. Also, it should appeal to a broader audience among non-specialists in various sectors and the general public. Key features: Brings together interdisciplinary perspectives on the topic in one, cohesive book Chapter contributions from specialists in this interdisciplinary field from around the globe Up-to-date information with the latest developments
Download or read book Space Security and Legal Aspects of Active Debris Removal written by Annette Froehlich and published by Springer. This book was released on 2018-11-27 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book analyzes the various legal and political concepts to resolve the problem of the existing space debris in outer space and which measures have been taken to avoid space debris or to reduce potential space debris in the course of future space missions. From a scientific and technical point of view various studies are ongoing to analyze the feasibility of active debris removal. Nevertheless it has to be highlighted that outer space is an international area where various actors with different legal and political concepts are operating, a situation that leads to different approaches concerning such activities.
Download or read book Orbital Debris Mitigation Techniques written by American Institute of Aeronautics and Astronautics. Technical Committee on the Legal Aspects of Aeronautics and Astronautics and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1992 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This AIAA special report addresses the minimization of the orbital debris hazard from an interdisciplinary perspective. It reviews a broad range of existing and proposed debris mitigation techniques and presents the results of an AIAA survey of industry and government. It discusses a number of important economic issues associated with orbital debris and provides a first-order economic assessment of the mitigation techniques. Finally, the report describes the existing regulatory framework and addresses several options for implementing those techniques, both nationally and internationally.
Download or read book Confronting Space Debris written by Dave Baiocchi and published by Rand Corporation. This book was released on 2010 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: To guide future responses to the space debris problem, examines strategies for nine comparable problems: acid rain, U.S. commercial airline security, asbestos, chlorofluorocarbons, hazardous waste, oil spills, radon, spam, and U.S. border control.
Download or read book Using lasers in space laser orbital debris removal and asteroid deflection written by Jonathan Wesley Campbell and published by DIANE Publishing. This book was released on 2000 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Space Debris and Other Threats from Outer Space written by Joseph N. Pelton and published by Springer Science & Business Media. This book was released on 2013-03-27 with total page 85 pages. Available in PDF, EPUB and Kindle. Book excerpt: The mounting problem of space debris in low earth orbit and its threat to the operation of application satellites has been increasingly recognized as space activities increase. The efforts of the Inter Agency Space Debris Coordinating Committee (IADC) and UN COPUS have now led to international guidelines to mitigate the creation of new debris. This book discusses the technical studies being developed for active removal processes and otherwise mitigating problems of space debris, particularly in low earth orbit. This book also considers threats to space systems and the Earth that comes from natural causes such as asteroids, coronal mass ejections, and radiation. After more than half a century of space applications and explorations, the time has come to consider ways to provide sustainability for long-term space activities.
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 Active Space Debris Removal Using Capture and Ejection written by Jonathan William Missel and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Low Earth Orbit is over-cluttered with rogue objects that threaten existing technological assets and interfere with allocating new ones. Traditional satellite missions are not efficient enough to collect an appreciable amount of debris due to the high cost of orbit transfers. Many alternate proposals are politically controversial, costly, or dependent on undeveloped technology. This dissertation attempts to solve the problem by introducing a new mission architecture, Space Sweeper, and bespoke hardware, Sling-Sat, that sequentially captures and ejects debris plastically. Resulting momentum exchanges are exploited to aid in subsequent orbit transfers, thus saving fuel. Sling-Sat is a spinning satellite that captures debris at the ends of adjustable-length arms. Arm length controls the angular rate to achieve a desired tangential ejection speed. Timing the release exacts the ejection angle. This process redirects debris to burn up in the atmosphere, or reduce its lifetime, by lowering its perigee. This dissertation establishes feasibility of principles fundamental to the proposed concept. Hardware is conceptualized to accommodate Space Sweeper's specialized needs. Mathematical models are built for the purpose of analysis and simulation. A kinematic analysis investigates system demands and long-term behavior resulting from repeated debris interaction. A successful approach to enforce debris capture is established through optimal control techniques. A study of orbital parameters and their response to debris interactions builds an intuition for missions of this nature. Finally, a J2-compliant technique for path optimization is demonstrated. The results strongly support feasibility of the proposed mission. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/149391
Download or read book Space Debris Cleaning Missions written by Max Cerf and published by . This book was released on 2017 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book MITIGATING SPACE DEBRIS THROUGH THE USE OF GAUSS VARIATIONAL EQUATIONS AND PARTICLE SWARM OPTIMIZATION written by Dylan Marlin Palm and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The accumulation of space debris is increasing at a tremendous rate. More than 25,000 objects of at least 10 cm in diameter orbit the Earth. These objects pose significant danger to other potential spacecraft. Creating methods to stop this increasing process are important for the future for space exploration. This research was solidified by examining the use of solar sail technology as a viable option for mitigating the problem of space debris. Considering only two-dimensional motion, the Gauss Variational Equations (GVEs) were used along with the fundamental solar sail force equation to find a fixed optimal angle for the solar sail to minimize the time to deorbit a space debris in Low Earth Orbit (LEO). Other effects such as gravity from the Moon and Sun were ignored along with low-density drag. Further research was conducted, using the particle swarm optimization (PSO) technique along with the GVEs to find the optimal time-varying angle for the solar sail to minimize the time to deorbit space debris. Both problems are solved by using the computer program MATLAB. Future work will delve into refining the PSO algorithm as applied to this problem in order to obtain improved solutions.
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.
Download or read book A Feasibility Study of CubeSat Architectures for Space Debris Removal from Low Earth Orbit written by Christopher P. Clark and published by . This book was released on 2021 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results suggest that CubeSats are capable of capturing and deorbiting certain families of debris objects defined by mass and altitude, particularly objects with negligible rotational properties. Feasible CubeSat designs are discovered for all three of the deorbit methods. It is concluded that CubeSat-based debris removal is an area deserving of further exploration, as it could represent a uniquely cost-effective method for removing dangerous debris from low-earth orbit.
Download or read book A New Approach to Active Removal of Space Debris written by Houman Hakima and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a result of human space activities for over sixty years, there exist numerous man-made debris objects in the Earth orbits. Such objects not only jeopardize current operations of important space assets, but can also seriously hinder future space missions through a potential chain reaction of colliding space debris. This research addresses mitigation and remediation of the space debris environment. The thesis entails research in four critical subject areas: i) characterization of the debris environment, ii) assessment of the active debris removal methods proposed in the literature, iii) detailed engineering of a novel removal concept using a CubeSat spacecraft, called Deorbiter CubeSat, for sizable debris objects in low-Earth orbit, and iv) design of attitude and orbit controllers for the proposed spacecraft. The research first develops a probabilistic method for the prioritization of debris objects to be consid- ered in near-future removal missions. Then, a comparative study and in-depth analysis is conducted on the removal methods proposed in the literature to investigate their viability, through a number of multi- criteria assessment techniques. A Monte Carlo analysis is used in the study to quantify the intrinsic uncertainty associated with the space debris population. Next, a new debris removal mission utilizing Deorbiter CubeSats is conceptualized, and the design of CubeSat subsystems is detailed. A mothership spacecraft carries and deploys a number of Deorbiter CubeSats into designated orbits near their target debris. Each CubeSat uses an eight-unit form factor, and consists of commercially-available components with substantial space heritage. The actual performance specifications of the components are used to examine the proposed space debris removal approach. Finally, control schemes are synthesized for the critical maneuvers in the mission, using a unilateral low-thrust propulsion and a three-axis reaction wheel systems onboard the CubeSat, namely, i) concurrent rendezvous and attitude synchronization maneuver for approaching and attaching to the debris, ii) detumbling maneuver for stabilizing the debris attitude motion, and iii) deorbiting maneuver for transferring the debris from its original orbit to a deorbit altitude along a time-optimal trajectory. Several numerical simulations verify and validate the proposed approach as well as the control schemes.
