Download or read book Soho Mission Interruption Joint Nasa ESA Investigation Board written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-11 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contact with the SOlar Heliospheric Observatory (SOHO) spacecraft was lost in the early morning hours of June 25, 1998, Eastern Daylight Time (EDT), during a planned period of calibrations, maneuvers, and spacecraft reconfigurations. Prior to this the SOHO operations team had concluded two years of extremely successful science operations. A joint European Space Agency (ESA)/National Aeronautics and Space Administration (NASA) engineering team has been planning and executing recovery efforts since loss of contact with some success to date. ESA and NASA management established the SOHO Mission Interruption Joint Investigation Board to determine the actual or probable cause(s) of the SOHO spacecraft mishap. The Board has concluded that there were no anomalies on-board the SOHO spacecraft but that a number of ground errors led to the major loss of attitude experienced by the spacecraft. The Board finds that the loss of the SOHO spacecraft was a direct result of operational errors, a failure to adequately monitor spacecraft status, and an erroneous decision which disabled part of the on-board autonomous failure detection. Further, following the occurrence of the emergency situation, the Board finds that insufficient time was taken by the operations team to fully assess the spacecraft status prior to initiating recovery operations. The Board discovered that a number of factors contributed to the circumstances that allowed the direct causes to occur. The Board strongly recommends that the two Agencies proceed immediately with a comprehensive review of SOHO operations addressing issues in the ground procedures, procedure implementation, management structure and process, and ground systems. This review process should be completed and process improvements initiated prior to the resumption of SOHO normal operations. Unspecified Center ...
Download or read book SOHO Mission Interruption Joint NASA ESA Investigation Board written by National aeronautics and space administration washington dc and published by . This book was released on 1998 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contact with the SOlar Heliospheric Observatory (SOHO) spacecraft was lost in the early morning hours of June 25, 1998, Eastern Daylight Time (EDT), during a planned period of calibrations, maneuvers, and spacecraft reconfigurations. Prior to this the SOHO operations team had concluded two years of extremely successful science operations. A joint European Space Agency (ESA)/National Aeronautics and Space Administration (NASA) engineering team has been planning and executing recovery efforts since loss of contact with some success to date. ESA and NASA management established the SOHO Mission Interruption Joint Investigation Board to determine the actual or probable cause(s) of the SOHO spacecraft mishap. The Board has concluded that there were no anomalies on-board the SOHO spacecraft but that a number of ground errors led to the major loss of attitude experienced by the spacecraft. The Board finds that the loss of the SOHO spacecraft was a direct result of operational errors, a failure to adequately monitor spacecraft status, and an erroneous decision which disabled part of the on-board autonomous failure detection. Further, following the occurrence of the emergency situation, the Board finds that insufficient time was taken by the operations team to fully assess the spacecraft status prior to initiating recovery operations. The Board discovered that a number of factors contributed to the circumstances that allowed the direct causes to occur. The Board strongly recommends that the two Agencies proceed immediately with a comprehensive review of SOHO operations addressing issues in the ground procedures, procedure implementation, management structure and process, and ground systems. This review process should be completed and process improvements initiated prior to the resumption of SOHO normal operations.
Download or read book Flight Mechanics Symposium written by and published by . This book was released on 1999 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Harnessing the Power of Failure written by John Steven Newman and published by Emerald Group Publishing. This book was released on 2018-09-13 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book the authors employ the SFCS approach to explore a vast array of failure events in multiple sectors of transportation, industry, aerospace, construction, and critical infrastructure.
Download or read book Sentinels of the Sun written by Barbara B. Poppe and published by Big Earth Publishing. This book was released on 2006 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Sentinels of the Sun: Forecasting Space Weather". This book takes an in-depth look at how space weather affects us. Authors Barbara Poppe with Kristen Jorden.
Download or read book 1999 Flight Mechanics Symposium written by John P. Lynch and published by . This book was released on 1999 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FM 2005 Formal Methods written by John Fitzgerald and published by Springer Science & Business Media. This book was released on 2005-07-04 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of Formal Methods 2005, the 13th InternationalSymposiumonFormalMethodsheldinNewcastleuponTyne,UK, during July 18–22, 2005. Formal Methods Europe (FME, www.fmeurope.org) is an independent association which aims to stimulate the use of, and research on, formal methods for system development. FME conferences began with a VDM Europe symposium in 1987. Since then, the meetings have grown and have been held about once every 18 months. Throughout the years the symposia have been notablysuccessfulinbringingtogetherresearchers,tooldevelopers,vendors,and users, both from academia and from industry. Formal Methods 2005 con?rms this success. We received 130 submissions to the main conference, from all over the world. Each submission was carefully refereed by at least three reviewers. Then, after an intensive, in-depth discussion, the Program Committee selected 31 papers for presentation at the conference. They form the bulk of this volume. We would like to thank all the Program Committee members and the referees for their excellent and e?cient work. Apart from the selected contributions, the Committee invited three keynote lectures from Mathai Joseph, Marie-Claude Gaudel and Chris Johnson. You will ?nd the abstracts/papers for their keynote lectures in this volume as well. AninnovationfortheFM2005programwasapaneldiscussiononthehistory of formal methods, with Jean-Raymond Abrial, Dines Bjørner, Jim Horning and Cli? Jones as panelists. Unfortunately, it was not possible to re?ect this event in the current volume, but you will ?nd the material documenting it elsewhere (see the conference Web page).
Download or read book Ask Magazine written by and published by . This book was released on 2010 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Dynamic Sun written by A. Hanslmeier and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 323 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our Sun is the nearest star and thus an ideal laboratory to study dynamic processes which are related to solar terrestrial physics. The topics addressed in this book cover solar MHD and generation of acoustic waves, as well as physical parameters that are suited to describing solar activity and could serve as proxies for space weather forecasting. The influence of solar activity (radiation and solar wind) on telecommunication systems, satellite missions etc. is also discussed. In short, contribution reports are given on various topics in solar physics. The book covers solar physics from the photosphere to space weather influences. The intended level of readership is aimed at students working in this or related fields, professionals, and astronomers who wish to acquire some basic knowledge in the field of solar terrestrial relations, which is provided in the review articles.
Download or read book ESA Bulletin written by European Space Agency and published by . This book was released on 1999 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing Tools for Exploration written by Pamela Elizabeth Clark and published by Springer Science & Business Media. This book was released on 2010-07-01 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Remote Sensing from a New Perspective The idea for this book began many years ago, when I was asked to teach a course on remote sensing. Not long before that time, I had been part of the effort to develop the first database for planetary data with a common digital array format and interactive processing capabilities to correlate those data easily: the lunar consortium. All the available lunar remote sensing data were included, orbital and ground-based, ranging across the entire electromagnetic spectrum. I had used this powerful tool extensively, and, in that spirit, I was determined to create a course which covered the entire spectrum and a variety of targets. As I looked around for the equivalent of a textbook, which I was willing to pull together from several sources, I realized that available material was very heavily focused on the visual and near visual spectrum and on the Earth as a target. Even The Surveillant Science, edited by Edward Holz and published in 1973, which broke new ground in having diverse articles on most of the spectrum when it was created, focused entirely on the Earth. My personal favorite, the exceedingly well written book on remote sensing by Floyd Sabins first published in 1978, covered the visual, infrared, and microwave portions of the spectrum beautifully but focused on the Earth as well. Unhindered, I developed what I called ‘packets’ of material for each part of the spectrum.
Download or read book Sun Earth and Sky written by Kenneth R. Lang and published by Springer Science & Business Media. This book was released on 2007-12-31 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written in a light and friendly style, this lavishly illustrated book introduces the Sun and its physics, and describes all aspects of the Sun’s interaction with us on Earth. The second edition of this book updates the popular text by providing comprehensive accounts of the most recent discoveries made by five modern solar spacecraft during the past decade. It contains a number of images never before seen in print. Breakthrough observations with the underground Sudbury Neutrino Observatory are also included. The new edition further provides modern interpretations of ozone depletion and global warming.
Download or read book NASA Conference Publication written by and published by . This book was released on 1999 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Sun from Space written by Kenneth R. Lang and published by Springer Science & Business Media. This book was released on 2008-10-20 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: The First Edition of The Sun from Space, completed in 1999, focused on the early accomplishments of three solar spacecraft, SOHO, Ulysses, and Yohkoh, primarily during a minimum in the Sun’s 11-year cycle of magnetic activity. The comp- hensive Second Edition includes the main ndings of these three spacecraft over an entire activity cycle, including two minima and a maximum, and discusses the signi cant results of six more solar missions. Four of these, the Hinode, RHESSI, STEREO, and TRACE missions were launched after the First Edition was either nished or nearly so, and the other two, the ACE and Wind spacecraft, extend our investigations from the Sun to its varying input to the Earth. The Second Edition does not contain simple updates or cosmetic patch ups to the material in the First Edition. It instead contains the relevant discoveries of the past decade, integrated into chapters completely rewritten for the purpose. This provides a fresh perspective to the major topics of solar enquiry, written in an enjoyable, easily understood text accessible to all readers, from the interested layperson to the student or professional.
Download or read book FME written by and published by . This book was released on 2005 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Astronomy Now written by and published by . This book was released on 1999 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Taming Liquid Hydrogen written by Virginia Parker Dawson and published by . This book was released on 2004 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
