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Heterogeneous Satellite Constellation Design For Cislunar Space Situational Awareness Using Real Options Analysis
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Book Synopsis Heterogeneous Satellite Constellation Design for Cislunar Space Situational Awareness Using Real Options Analysis by : Jordan Wachs
Download or read book Heterogeneous Satellite Constellation Design for Cislunar Space Situational Awareness Using Real Options Analysis written by Jordan Wachs and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number of commercial satellites in Low Earth Orbit (LEO) increased more than four-fold in the decade between 2011 and 2021, a trend that is likely to continue due to the combination of increasingly capable technologies and business models [23] [24]. Building on the success of the LEO economy, there is potential for the establishment of a cislunar economy, supporting NASA and providing commercial goods and services well beyond LEO [20]. Successful creation of a cislunar economy will require commercial and government cooperation at an altogether new scale. The vastness of this new domain, however, makes the implementation of an adequate Space Situational Awareness (SSA) capability both necessary and extraordinarily difficult. Future aerospace leaders may find them selves breaking from traditional paradigms for architecture definition, systems engineering, and program costing [43]. Rather than wholesale abandonment of the processes that resulted in decades of successful innovation, however, future architects will benefit from the adoption of a new framework of systems thinking that combines the hard-won knowledge from the Aerospace domain with similarly deep lessons learned from other domains such as Finance and Real Options. This thesis explores a new framework for the analysis of large, dynamic, heterogeneous satellite constellation architectures by focusing on a multi-mode cislunar (SSA) capability. The combination of technical performance models, financial models, and real options analyses into a single tool allows system architects to identify and maintain multiple paths to program success by preserving flexibility in design and implementation throughout the program life cycle. The analyses presented in this thesis explore how Real Options can be used to increase the probability of mission success from as low as 2% to as high as 72% despite wide ranging uncertainty in system cost and performance.
Book Synopsis Numerical Analysis and Design of Satellite Constellations for Above the Horizon Coverage by : Andrew Takeshi Takano
Download or read book Numerical Analysis and Design of Satellite Constellations for Above the Horizon Coverage written by Andrew Takeshi Takano and published by . This book was released on 2010 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: As near-Earth space becomes increasingly crowded with spacecraft and debris, the need for improved space situational awareness has become paramount. Contemporary ground-based systems are limited in the detection of very small or dim targets. In contrast, space-based systems, above most atmospheric interference, can achieve significant improvements in dim target detection by observing targets against a clutter-free space background, i.e. targets above the horizon (ATH). In this study, numerical methods for the evaluation of ATH coverage provided by constellations of satellites are developed. Analysis of ATH coverage volume is reduced to a planar analysis of cross-sectional coverage area in the orbit plane. The coverage model performs sequences of boolean operations between polygons representing cross-sections of satellite sensor coverage regions and regions of interest, returning the coverage area at the desired multiplicity. This methodology allows investigation of any coverage multiplicity for planar constellations of any size, and use of arbitrary sensor profiles and regions of interest. The implementation is applied to several constellation design problems demonstrating the utility of the numerical ATH coverage model in a constellation design process.
Book Synopsis Analytical Approach to the Design of Optimal Satellite Constellations for Space-based Space Situational Awareness Applications by : Ashley Darius Biria
Download or read book Analytical Approach to the Design of Optimal Satellite Constellations for Space-based Space Situational Awareness Applications written by Ashley Darius Biria and published by . This book was released on 2011 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the accumulation of space debris has become an increasingly pressing issue, and adequately monitoring it is a formidable task for designated ground-based sensors. Supplementing the capabilities of these ground-based networks with orbiting sensing platforms would dramatically enhance the ability of such systems to detect, track, identify, and characterize resident space objects -- the primary goals of modern space situational awareness (SSA). Space-based space situational awareness (SBSSA), then, is concerned with achieving the stated SSA goals through coordinated orbiting sensing platforms. To facilitate the design of satellite constellations that promote SSA goals, an optimization approach is selected, which inherently requires a pre-defined mathematical representation of a cost index or measure of merit. Such representations are often analytically available, but when considering optimal constellation design for SBSSA applications, a closed-form expression for the cost index is only available under certain assumptions. The present study focuses on a subset of cases that admit exact representations. In this case, geometrical arguments are employed to establish an analytical formulation for the coverage area provided as well as for the coverage multiplicity. These analytical results are essential in validating numerical approximations that are able to simulate more complex configurations.
Book Synopsis Mission Design & Implementation of Satellite Constellations by : Jozef C. van der Ha
Download or read book Mission Design & Implementation of Satellite Constellations written by Jozef C. van der Ha and published by Springer. This book was released on 1998-10-31 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings from the November 1997 workshop. Thirty-seven papers discuss satellite applications in the fields of telecommunications, navigation, and Earth Observations. Real- world applications that are addressed include voice and data communications, navigation, and data relay services, with specific studies addressing constellation projects for telephone, data massaging, and broad-band data communication services like Iridium, Orbcomm, Skybridge, Celestri, and Teledesic. Also, collision and orbital debris risk issues associated with satellite constellations, as well as proposed mitigation measures, receive attention. No index. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Small Satellites for Earth Observation by : Rainer Sandau
Download or read book Small Satellites for Earth Observation written by Rainer Sandau and published by Springer Science & Business Media. This book was released on 2008-04-18 with total page 399 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 6th IAA Symposium on Small Satellites for Earth Observation, initiated by the International Academy of Astronautics (IAA), was again hosted by DLR, the German Aerospace Center. The participation of scientists, engineers, and managers from 24 countries reflected the high interest in the use of small satellites for dedicated missions applied to Earth observation. The contributions showed that dedicated Earth observation missions cover a wide range of very different tasks.
Book Synopsis Planning the Future Space Weather Operations and Research Infrastructure: Proceedings of the Phase II Workshop by : National Academies Of Sciences Engineeri
Download or read book Planning the Future Space Weather Operations and Research Infrastructure: Proceedings of the Phase II Workshop written by National Academies Of Sciences Engineeri and published by National Academies Press. This book was released on 2023-06-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Affecting technological systems at a global-scale, space weather can disrupt high-frequency radio signals, satellite-based communications, navigational satellite positioning and timing signals, spacecraft operations, and electric power delivery with cascading socioeconomic effects resulting from these disruptions. Space weather can also present an increased health risk for astronauts, as well as aviation flight crews and passengers on transpolar flights. In 2019, the National Academies was approached by the National Aeronautics and Space Administration, the National Oceanic and Atmospheric Administration, and the National Science Foundation to organize a workshop that would examine the operational and research infrastructure that supports the space weather enterprise, including an analysis of existing and potential future measurement gaps and opportunities for future enhancements. This request was subsequently modified to include two workshops, the first (Phase I) of which occurred in two parts on June 16-17 and September 9-11, 2020. The Phase II workshop occurred on April 11-14, 2022, with sessions on agency updates, research needs, data science, observational and modeling needs, and emerging architectures relevant to the space weather research community and with ties to operational needs. This publication summarizes the presentation and discussion of that workshop.
Book Synopsis Space Capstone Publication Spacepower by : Us Government United States Space Force
Download or read book Space Capstone Publication Spacepower written by Us Government United States Space Force and published by . This book was released on 2020-08-11 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book, Space Capstone Publication Spacepower: Doctrine for Space Forces, is capstone doctrine for the United States Space Force and represents our Service's first articulation of an independent theory of spacepower. This publication answers why spacepower is vital for our Nation, how military spacepower is employed, who military space forces are, and what military space forces value. In short, this capstone document is the foundation of our professional body of knowledge as we forge an independent military Service committed to space operations. Like all doctrine, the SCP remains subject to the policies and strategies that govern its employment. Military spacepower has deterrent and coercive capacities - it provides independent options for National and Joint leadership but achieves its greatest potential when integrated with other forms of military power. As we grow spacepower theory and doctrine, we must do so in a way that fosters greater integration with the Air Force, Army, Navy, Marine Corps, and Coast Guard. It is only by achieving true integration and interdependence that we can hope to unlock spacepower's full potential.
Book Synopsis The Physics of Space Security by : David Wright
Download or read book The Physics of Space Security written by David Wright and published by . This book was released on 2005 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aeronautics and Space Report of the President ... Activities by : United States. President
Download or read book Aeronautics and Space Report of the President ... Activities written by United States. President and published by . This book was released on 1997 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Low-Energy Lunar Trajectory Design by : Jeffrey S. Parker
Download or read book Low-Energy Lunar Trajectory Design written by Jeffrey S. Parker and published by John Wiley & Sons. This book was released on 2014-06-25 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on years of research conducted at the NASA Jet Propulsion Laboratory, Low-Energy Lunar Trajectory Design provides high-level information to mission managers and detailed information to mission designers about low-energy transfers between Earth and the moon. The book answers high-level questions about the availability and performance of such transfers in any given month and year. Low-energy lunar transfers are compared with various other types of transfers, and placed within the context of historical missions. Using this book, designers may reconstruct any transfer described therein, as well as design similar transfers with particular design parameters. An Appendix, “Locating the Lagrange Points,” and a useful list of terms and constants completes this technical reference. Surveys thousands of possible trajectories that may be used to transfer spacecraft between Earth and the moon, including transfers to lunar libration orbits, low lunar orbits, and the lunar surface Provides information about the methods, models, and tools used to design low-energy lunar transfers Includes discussion about the variations of these transfers from one month to the next, and the important operational aspects of implementing a low-energy lunar transfer Additional discussions address navigation, station-keeping, and spacecraft systems issues
Book Synopsis A Thesaurus of English Word Roots by : Horace Gerald Danner
Download or read book A Thesaurus of English Word Roots written by Horace Gerald Danner and published by Rowman & Littlefield. This book was released on 2014-03-27 with total page 1007 pages. Available in PDF, EPUB and Kindle. Book excerpt: Horace G. Danner’s A Thesaurus of English Word Roots is a compendium of the most-used word roots of the English language. As Timothy B. Noone notes in his foreword: “Dr. Danner’s book allows you not only to build up your passive English vocabulary, resulting in word recognition knowledge, but also gives you the rudiments for developing your active English vocabulary, making it possible to infer the meaning of words with which you are not yet acquainted. Your knowledge can now expand and will do so exponentially as your awareness of the roots in English words and your corresponding ability to decode unfamiliar words grows apace. This is the beginning of a fine mental linguistic library: so enjoy!” In A Thesaurus of English Word Roots, all word roots are listed alphabetically, along with the Greek or Latin words from which they derive, together with the roots’ original meanings. If the current meaning of an individual root differs from the original meaning, that is listed in a separate column. In the examples column, the words which contain the root are then listed, starting with their prefixes, for example, dysacousia, hyperacousia. These root-starting terms then are followed by terms where the root falls behind the word, e.g., acouesthesia and acoumeter. These words are followed by words where the root falls in the middle or the end, as in such terms as bradyacusia and odynacusis.. In this manner, A Thesaurus of English Word Roots places the word in as many word families as there are elements in the word. This work will interest linguists and philologists and anyone interested in the etymological aspects of English language.
Book Synopsis Proceedings of the 13th Reinventing Space Conference by : Scott Hatton
Download or read book Proceedings of the 13th Reinventing Space Conference written by Scott Hatton and published by Springer. This book was released on 2018-04-28 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinventing Space is the largest global conference and exhibition for one of the space industry’s fastest growing sectors. Over its 82-year history, the British Interplanetary Society has acted as a forum for new and innovative ideas and developments in astronautics, low-cost access and utilization of space. These conference proceedings reflect the work done at the 13th Reinventing Space Conference, the second biggest space event in the UK during 2015. The global economic climate is creating demand to reduce expenditure, leading to new challenges and opportunities in the world’s space industry. The need to create more responsive systems and launchers that are capable of delivering to space quickly, cheaply and reliably has never been more vital. This collection from RIspace brings together industry, agency, government, financiers, academia and end users. It focuses on the commercialization of space and addresses a range of topics including low-cost launch opportunities, the rebirth of constellations, beyond LEO activities and novel technologies. These papers encourage and promote forward-thinking ideas and concepts for the future exploration and utilization of space. The proceedings address: • New ways of doing business in space – how do we make money on affordable and responsive space missions? • Tactical space systems – how do we best serve the needs of defense missions; civilian missions; the needs of emergency responders? • Interplanetary missions – can we use new technology to explore the Solar System at dramatically lower cost? • What are the methods, processes, and technologies that we can use to make major reductions in the cost of space missions? • New application areas for low-cost space systems – which ones can take advantage of newer, much lower-cost systems? • How do we educate and motivate the coming generation, without whom there won’t be a space industry?
Download or read book China Dreams written by Jane Golley and published by ANU Press. This book was released on 2020-04-16 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: The year 2019 marked a number of significant anniversaries for the People’s Republic of China (PRC), each representing different ‘Chinese dreams’. There was the centennial of the May Fourth Movement — a dream of patriotism and cultural renewal. The PRC celebrated its seventieth anniversary — a dream of revolution and national strength. It was also thirty years since the student-led Protest Movement of 1989 — dreams of democracy and free expression crushed by government dreams of unity and stability. Many of these ‘dreams’ recurred in new guises in 2019. President Xi Jinping tightened his grip on power at home while calling for all citizens to ‘defend China’s honour abroad’. Escalating violence in Hong Kong, the ongoing suppression of Uyghurs in Xinjiang, and deteriorating Sino-US relations dominated the headlines. Alongside stories about China’s advances in artificial intelligence and geneticially modified babies and its ambitions in the Antarctic and outer space, these issues fuelled discussion about what Xi’s own ‘China Dream’ of national rejuvenation means for Chinese citizens and the rest of the world. The China Story Yearbook: China Dreams reflects on these issues and more. It surveys the dreams, illusions, aspirations, and nightmares that coexisted (and clashed) in 2019 in China and beyond. As ever, we take a cross-disciplinary perspective that recognises the inextricable links between economy, politics, culture, history, language, and society. The Yearbook, with its accessible analysis of the main events and trends of the year, is an essential tool for understanding China’s growing power and influence around the world.
Book Synopsis Using Space Resources by : Thomas A. Sullivan
Download or read book Using Space Resources written by Thomas A. Sullivan and published by . This book was released on 1991 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handwriting Practice Paper by : Bottota Publication
Download or read book Handwriting Practice Paper written by Bottota Publication and published by . This book was released on 2020-01-18 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handwriting Practice Paper Notebook.Dotted Mid-lines Uppercase and Lowercase Writing Sheets Notebook For Kids (Kindergarten To 3rd Grade Students).Perfect Christmas Birthday Gifts For Kids Age 3-5 Who Are Learning To Write Size: 8.5 x 11 in (21.59 x 27.94 cm) Pages: 150 pages, uppercase and lowercase tracing Paper: Good quality crisp white paper, ink won't bleed Cover: Soft Cover
Book Synopsis Analytical Mechanics of Space Systems by : Hanspeter Schaub
Download or read book Analytical Mechanics of Space Systems written by Hanspeter Schaub and published by AIAA. This book was released on 2003 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Human Factor in the Settlement of the Moon by : Margaret Boone Rappaport
Download or read book The Human Factor in the Settlement of the Moon written by Margaret Boone Rappaport and published by Springer Nature. This book was released on 2021-11-19 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Approaching the settlement of our Moon from a practical perspective, this book is well suited for space program planners. It addresses a variety of human factor topics involved in colonizing Earth's Moon, including: history, philosophy, science, engineering, agriculture, medicine, politics & policy, sociology, and anthropology. Each chapter identifies the complex, interdisciplinary issues of the human factor that arise in the early phases of settlement on the Moon. Besides practical issues, there is some emphasis placed on preserving, protecting, and experiencing the lunar environment across a broad range of occupations, from scientists to soldiers and engineers to construction workers. The book identifies utilitarian and visionary factors that shape human lives on the Moon. It offers recommendations for program planners in the government and commercial sectors and serves as a helpful resource for academic researchers. Together, the coauthors ask and attempt to answer: “How will lunar society be different?”
