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The Hubble Space Telescope Optical Systems Failure Report
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Book Synopsis The Hubble Space Telescope Optical Systems Failure Report by : National Aeronautics and Space Adm Nasa
Download or read book The Hubble Space Telescope Optical Systems Failure Report written by National Aeronautics and Space Adm Nasa and published by . This book was released on 2018-11-14 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: The findings of the Hubble Space Telescope Optical Systems Board of Investigation are reported. The Board was formed to determine the cause of the flaw in the telescope, how it occurred, and why it was not detected before launch. The Board conducted its investigation to include interviews with personnel involved in the fabrication and test of the telescope, review of documentation, and analysis and test of the equipment used in the fabrication of the telescope's mirrors. The investigation proved that the primary mirror was made in the wrong shape (a 0.4-wave rms wavefront error at 632.8 nm). The primary mirror was manufactured by the Perkin-Elmer Corporation (Hughes Danbury Optical Systems, Inc.). The critical optics used as a template in shaping the mirror, the reflective null corrector (RNC), consisted of two small mirrors and a lens. This unit had been preserved by the manufacturer exactly as it was during the manufacture of the mirror. When the Board measured the RNC, the lens was incorrectly spaced from the mirrors. Calculations of the effect of such displacement on the primary mirror show that the measured amount, 1.3 mm, accounts in detail for the amount and character of the observed image blurring. No verification of the reflective null corrector's dimensions was carried out by Perkin-Elmer after the original assembly. There were, however, clear indications of the problem from auxiliary optical tests made at the time. A special optical unit called an inverse null corrector, designed to mimic the reflection from a perfect primary mirror, was built and used to align the apparatus; when so used, it clearly showed the error in the reflective null corrector. A second null corrector was used to measure the vertex radius of the finished primary mirror. It, too, clearly showed the error in the primary mirror. Both indicators of error were discounted at the time as being themselves flawed. The Perkin-Elmer plan for fabricating the primary mirror placed complete relia...
Book Synopsis The Hubble Space Telescope Optical Systems Failure Report by :
Download or read book The Hubble Space Telescope Optical Systems Failure Report written by and published by . This book was released on 1990 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Options for Extending the Life of the Hubble Space Telescope by : National Research Council
Download or read book Assessment of Options for Extending the Life of the Hubble Space Telescope written by National Research Council and published by National Academies Press. This book was released on 2005-02-28 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Hubble Space Telescope (HST) has operated continuously since 1990. During that time, four space shuttle-based service missions were launched, three of which added major observational capabilities. A fifth â€" SM-4 â€" was intended to replace key telescope systems and install two new instruments. The loss of the space shuttle Columbia, however, resulted in a decision by NASA not to pursue the SM-4 mission leading to a likely end of Hubble's useful life in 2007-2008. This situation resulted in an unprecedented outcry from scientists and the public. As a result, NASA began to explore and develop a robotic servicing mission; and Congress directed NASA to request a study from the National Research Council (NRC) of the robotic and shuttle servicing options for extending the life of Hubble. This report presents an assessment of those two options. It provides an examination of the contributions made by Hubble and those likely as the result of a servicing mission, and a comparative analysis of the potential risk of the two options for servicing Hubble. The study concludes that the Shuttle option would be the most effective one for prolonging Hubble's productive life.
Book Synopsis The Hubble Space Telescope Optical Systems Failure Report by :
Download or read book The Hubble Space Telescope Optical Systems Failure Report written by and published by . This book was released on 1990 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Assessment of Options for Extending the Life of the Hubble Space Telescope by : National Research Council
Download or read book Assessment of Options for Extending the Life of the Hubble Space Telescope written by National Research Council and published by National Academies Press. This book was released on 2005-03-28 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Hubble Space Telescope (HST) has operated continuously since 1990. During that time, four space shuttle-based service missions were launched, three of which added major observational capabilities. A fifth â€" SM-4 â€" was intended to replace key telescope systems and install two new instruments. The loss of the space shuttle Columbia, however, resulted in a decision by NASA not to pursue the SM-4 mission leading to a likely end of Hubble's useful life in 2007-2008. This situation resulted in an unprecedented outcry from scientists and the public. As a result, NASA began to explore and develop a robotic servicing mission; and Congress directed NASA to request a study from the National Research Council (NRC) of the robotic and shuttle servicing options for extending the life of Hubble. This report presents an assessment of those two options. It provides an examination of the contributions made by Hubble and those likely as the result of a servicing mission, and a comparative analysis of the potential risk of the two options for servicing Hubble. The study concludes that the Shuttle option would be the most effective one for prolonging Hubble's productive life.
Book Synopsis Life With Hubble by : David S. Leckrone
Download or read book Life With Hubble written by David S. Leckrone and published by . This book was released on 2020-07-10 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Hubble Space Telescope is one of the most important scientific and engineering endeavors of our time. It has given humankind the first truly clear view of the heavens and has revolutionized almost every area of modern astronomy. The author this text, David Leckrone, worked as a project scientist on Hubble for 33 years. From 1992-2009 he was the Senior Project Scientist for Hubble at NASA's Goddard Space Flight Center. In that role he had an insider's view of the trials and triumphs of the Hubble mission, including its extraordinary scientific discoveries and the personal journeys of the astronomers who made them, the adventure of five successful shuttle-based servicing missions, and the quiet heroism of the many scientists, engineers and managers who rose to the occasion when Hubble was in trouble. This book is loosely a personal memoir but can more accurately be called a "Hubble family memoir" for which Leckrone serves as narrator. Based on numerous interviews and personal observations, Life With Hubble tells the human stories and describes the professional achievements of scores of talented and dedicated individuals who made major contributions to the Hubble legacy. It spans the years from 1990, when Hubble was launched and when the affliction of spherical aberration was discovered in its optics, through the final servicing mission in 2009 and up to the present day. There are also numerous flashbacks from earlier years. This book is aimed at an informed, non-professional audience, including those who have followed the saga of Hubble throughout its lifetime. Key Features Gives an informed, behind the scenes narrative, telling an interesting and historically important story Aimed at both a general audience, and interested members of the astronomical community Gives cogent, understandable scientific explanations Well illustrated with historically relevant photos and Hubble imagery Based on extensive recorded interviews with key scientists and engineers
Author :United States. General Accounting Office. National Security and International Affairs Division Publisher : ISBN 13 : Total Pages :32 pages Book Rating :4.F/5 ( download)
Book Synopsis Space Science by : United States. General Accounting Office. National Security and International Affairs Division
Download or read book Space Science written by United States. General Accounting Office. National Security and International Affairs Division and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Hubble Space Telescope Systems Engineering Case Study - Technical Information and Program History of NASA's Famous HST Telescope by : U. S. Military
Download or read book Hubble Space Telescope Systems Engineering Case Study - Technical Information and Program History of NASA's Famous HST Telescope written by U. S. Military and published by . This book was released on 2017-08-19 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is one of a series of systems engineering case studies prepared by the Air Force Center for Systems Engineering. This case study analyzes the Hubble Space Telescope program. The incredible story of the HST program from the early dreams and visions of a space-based telescope in 1946, through extensive, more formal program formulation and developments in the 1970s, tumultuous re-direction in the 1980s (especially due to the impact of the 1986 Challenger disaster), initial launch in 1990, and unplanned major on-orbit repairs in 1993 provides the basis for an exciting case study in all aspects of systems engineering. As we will see, this case represents a program dramatically impacted by a variety of scientific, technical, economic, political, and program management events and factors, many of them unpredictable. The study provides a wealth of technical information about the project and its complex history. The Department of Defense is exponentially increasing the acquisition of joint complex systems that deliver needed capabilities demanded by our warfighter. Systems engineering is the technical and technical management process that focuses explicitly on delivering and sustaining robust, high-quality, affordable solutions. The Air Force leadership has collectively stated the need to mature a sound systems engineering process throughout the Air Force. Gaining an understanding of the past and distilling learning principles that are then shared with others through our formal education and practitioner support are critical to achieving continuous improvement. FOREWORD * ACKNOWLEDGEMENTS * EXECUTIVE SUMMARY * 1.0 SYSTEMS ENGINEERING PRINCIPLES * 1.1 General Systems Engineering Process * 1.2 HST Major Learning Principles * 2.0 SYSTEM DESCRIPTION * 3.0 HST SYSTEMS ENGINEERING LEARNING PRINCIPLES * 3.1 Learning Principle 1 - Early Customer/User Participation * 3.2 Learning Principle 2 - Use of Pre-Program Trade Studies * 3.3 Learning Principle 3 - System Integration * 3.4 Learning Principle 4 - Life Cycle Support Planning and Execution * 3.5 Learning Principle 5 - Risk Assessment and Management * 4.0 SUMMARY * 5.0 REFERENCES
Author :United States. Congress. House. Committee on Science, Space, and Technology Publisher : ISBN 13 : Total Pages :172 pages Book Rating :4.0/5 ( download)
Book Synopsis Hubble Space Telescope Flaw by : United States. Congress. House. Committee on Science, Space, and Technology
Download or read book Hubble Space Telescope Flaw written by United States. Congress. House. Committee on Science, Space, and Technology and published by . This book was released on 1990 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Space Publisher : ISBN 13 : Total Pages :110 pages Book Rating :4.F/5 ( download)
Book Synopsis Hubble Space Telescope by : United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Space
Download or read book Hubble Space Telescope written by United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Space and published by . This book was released on 1994 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Science, Technology, and Space Publisher : ISBN 13 : Total Pages :40 pages Book Rating :4.0/5 ( download)
Book Synopsis Status of the Hubble Space Telescope by : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Science, Technology, and Space
Download or read book Status of the Hubble Space Telescope written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Science, Technology, and Space and published by . This book was released on 1990 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A History of Optical Telescopes in Astronomy by : Wilson Wall
Download or read book A History of Optical Telescopes in Astronomy written by Wilson Wall and published by Springer. This book was released on 2018-10-01 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is uniquely about the relationship between the optical telescope and astronomy as they developed together. It covers the time between the telescope's pivotal invention in the 1600's up to the modern era of space-based telescopes. Over the intervening centuries, there were huge improvements in the optical resolution of telescopes, along with changes in their positioning and nature of application that forever altered the course of astronomy. For a long time, the field was an exclusive club for self-motivated stargazers who could afford to build their own telescopes. Many of these leisure-time scholars left their mark by virtue of their meticulous observations and record keeping. Although they would now be considered amateurs, these figures and their contributions were pivotal and are covered in this book alongside professionals, for the first time giving a complete picture of the history of telescopic science.
Author :United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Science, Technology, and Space Publisher : ISBN 13 : Total Pages :64 pages Book Rating :4.:/5 (51 download)
Book Synopsis Hubble Space Telescope and the Space Shuttle Problems by : United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Science, Technology, and Space
Download or read book Hubble Space Telescope and the Space Shuttle Problems written by United States. Congress. Senate. Committee on Commerce, Science, and Transportation. Subcommittee on Science, Technology, and Space and published by . This book was released on 1990 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 1460 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Adaptive Optics in Astronomy by : François Roddier
Download or read book Adaptive Optics in Astronomy written by François Roddier and published by Cambridge University Press. This book was released on 1999-06-17 with total page 421 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive optics is set to revolutionise the future of astronomy; this is the first book on the subject and is set to become the standard reference.
Book Synopsis Formalisms for Reuse and Systems Integration by : Thouraya Bouabana-Tebibel
Download or read book Formalisms for Reuse and Systems Integration written by Thouraya Bouabana-Tebibel and published by Springer. This book was released on 2015-03-27 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reuse and integration are defined as synergistic concepts, where reuse addresses how to minimize redundancy in the creation of components; while, integration focuses on component composition. Integration supports reuse and vice versa. These related concepts support the design of software and systems for maximizing performance while minimizing cost. Knowledge, like data, is subject to reuse; and, each can be interpreted as the other. This means that inherent complexity, a measure of the potential utility of a system, is directly proportional to the extent to which it maximizes reuse and integration. Formal methods can provide an appropriate context for the rigorous handling of these synergistic concepts. Furthermore, formal languages allow for non ambiguous model specification; and, formal verification techniques provide support for insuring the validity of reuse and integration mechanisms. This edited book includes 12 high quality research papers written by experts in formal aspects of reuse and integration to cover the most recent advances in the field. These papers are extended versions of some of the best papers, which were presented at the IEEE International Conference on Information Reuse and Integration and the IEEE International Workshop on Formal Methods Integration - both of which were held in San Francisco in August 2014.
