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Author: Arjun Tan Publisher: World Scientific ISBN: 9811208573 Category : Science Languages : en Pages : 378
Book Description
For over half a century, an increasing number of satellites have fragmented in orbit, creating a large amount of hazardous orbital debris which threaten the safety of useful functioning satellites and space missions. This book discusses the theory behind these fragmentations followed by studies of actual cases.The book begins with a survey of satellite fragmentations in orbit and the consequent formation of orbital debris in chronological order. Next, the fundamental physical processes underlying satellite fragmentations are outlined and the methods of analyzing satellite fragmentations presented. The rest of the book presents analyses of the major satellite fragmentation events including accidental and intentional breakups, those due to explosions and collisions, as well as those belonging to the unknown category.
Author: Nicholas L. Johnson Publisher: www.Militarybookshop.CompanyUK ISBN: 9781782661702 Category : Science Languages : en Pages : 500
Book Description
Includes full color illustrations. Since the first serious satellite fragmentation occurred in June 1961 (which instantaneously increased the total Earth satellite population by more than 400%) the issue of space operations within the finite region of space around the Earth has been the subject of increasing interest and concern. The prolific satellite fragmentations of the 1970s and the marked increase in the number of fragmentations in the 1980s served to widen international research into the characteristics and consequences of such events. Continued events in all orbits in later years make definition and historical accounting of those events crucial to future research. Large, manned space stations and the growing number of operational robotic satellites demand a better understanding of the hazards of the dynamic Earth satellite population.
Author: Nasa Publisher: Nimble Books ISBN: 9781608881567 Category : Languages : en Pages : 0
Book Description
The first edition of the History of On-orbit Satellite Fragmentations was published by Teledyne Brown Engineering in August 1984 under the sponsorship of the NASA Johnson Space Center and with the cooperation of the U.S. Air Force Space Command and the U.S. Army Ballistic Missile Command. The objective was to bring together information about the 75 satellites, which had, at that time, experienced noticeable breakups. This update encompasses all known satellite fragmentations and was first published by the NASA Johnson Space Center's Orbital Debris Program Office (ODPO). AI summary: The document provides a comprehensive overview of various space debris events and their characteristics, serving as a useful resource for those interested in the topic. It covers events from 1991 to 2022, involving satellites and rocket bodies from different countries, including Transit 5B-2, Elektron 1, OPS 4412 (Transit 9), Cosmos 44 R/B, OPS 4988 (GREB 6), OPS 4682 (Snapshot), and OPS 8480 (Transit 5B-6). The document includes information on the type of satellite or rocket body involved in each event, including details on its size, shape, and major appendages, as well as information on the attitude control of each object. The document provides a history of satellite aerodynamic events, including launch dates, breakup dates, reentry dates, and additional information for various satellites. The information is presented in a table format, with each row representing a different satellite or debris object. The table includes details such as the satellite name, international designator, launch date, breakup date, reentry date, debris cataloged, apogee, perigee, inclination, and additional information. The document also discusses the RORSAT program, which involved Soviet satellites with nuclear reactors that were ejected into a higher storage orbit, resulting in the venting of sodium-potassium coolant. The document provides a list of coolant objects cataloged as of May 2022. The document also discusses spurious associations with fragmentation events and the importance of conducting analyses with complete satellite element set data. Overall, the document provides a comprehensive overview of various space debris events and their impact on space exploration and satellite operations. It serves as a reminder of the need for continued research and development to address the challenges posed by space debris and other anomalies. This book is annotated by Nimble AI and includes a Foreword by Cincinnatus [AI] a variety of pithy, opinionated abstracts including scientific style, tldr, tldr one word, Explain It to Me Like I'm Five Years Old, and Action Items; tools for viewpoint diversity such as Dissents, Red Team Critiques, and MAGA Perspectives; and a recursive summary with synopsis.
Author: National Research Council Publisher: National Academies Press ISBN: 0309219744 Category : Science Languages : en Pages : 178
Book Description
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.
Author: National Aeronautics and Space Administration (NASA) Publisher: Createspace Independent Publishing Platform ISBN: 9781724237811 Category : Languages : en Pages : 274
Book Description
Since the first serious satellite fragmentation occurred in Jun. 1961, and instantaneously increased the total Earth satellite population by more than 400 percent, the issue of space operations within the finite region of space around the Earth has been the subject of increasing interest and concern. The prolific satellite fragmentations of the 1970's and the marked increase in the number of fragmentations in the 1980's served to widen international research into the characteristics and consequences of such events. Plans for large, manned space stations in the next decade and beyond demand a better understanding of the hazards of the dynamic Earth satellite population. The contribution of satellite fragmentations to the growth of the Earth satellite population is complex and varied. The majority of detectable fragmentation debris have already fallen out of orbit, and the effects of 40 percent of all fragmentations have completely disappeared. In this volume, satellite fragmentations are categorized by their assessed nature and to a lesser degree by their effect on the near-Earth space environment. A satellite breakup is the usually destructive disassociation of an orbital payload, rocket body, or structure, often with a wide range of ejecta velocities. A satellite breakup may be accidental or the result of intentional actions, e.g., due to a propulsion system malfunction or a space weapons test, respectively. An anomalous event is the unplanned separation, usually at low velocity, of one or more detectable objects from a satellite which remains essentially intact. Anomalous events can be caused by material deterioration of items such as thermal blankets, protective shields, or solar panels. As a general rule, a satellite breakup will produce considerably more debris, both trackable and non-trackable, than an anomalous event. From one perspective, satellite breakups may be viewed as a measure of the effects of man's activity on the environment, while anomalous events...
Author: Joseph L. Stecher Publisher: ISBN: Category : Space environment Languages : en Pages : 518
Book Description
The conference provided participants with a forum to acquire and exchange information on the state-of-the-art in space simulation, test technology, atomic oxygen, program/system testing, dynamics testing, contamination, and materials. The papers presented at this conference and the resulting discussions carried out the conference theme "Space mission success through testing."
Author: David S. F. Portree Publisher: ISBN: Category : Space debris Languages : en Pages : 176
Book Description
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.