Aerothermal Analysis and Design of the Gravity Recovery and Climate Experiment (GRACE) Spacecraft PDF Download
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Author: Daniel D. Mazanek
Publisher:
ISBN:
Category : Aerothermodynamics
Languages : en
Pages : 50
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Book Description
Author: Daniel D. Mazanek
Publisher:
ISBN:
Category : Aerothermodynamics
Languages : en
Pages : 50
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Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781726193870
Category :
Languages : en
Pages : 48
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Book Description
The Gravity Recovery and Climate Experiment (GRACE) primary mission will be performed by making measurements of the inter-satellite range change between two co-planar, low altitude near-polar orbiting satellites. Understanding the uncertainties in the disturbance environment, particularly the aerodynamic drag and torques, is critical in several mission areas. These include an accurate estimate of the spacecraft orbital lifetime, evaluation of spacecraft attitude control requirements, and estimation of the orbital maintenance maneuver frequency necessitated by differences in the drag forces acting on both satellites. The FREEMOL simulation software has been developed and utilized to analyze and suggest design modifications to the GRACE spacecraft. Aerodynamic accommodation bounding analyses were performed and worst-case envelopes were obtained for the aerodynamic torques and the differential ballistic coefficients between the leading and trailing GRACE spacecraft. These analyses demonstrate how spacecraft aerodynamic design and analysis can benefit from a better understanding of spacecraft surface accommodation properties, and the implications for mission design constraints such as formation spacing control.Mazanek, Daniel D. and Kumar, Renjith R. and Qu, Min and Seywald, HansLangley Research CenterAEROTHERMODYNAMICS; DESIGN ANALYSIS; GRAVITATION; CLIMATE; SPACECRAFT DESIGN; THERMAL ANALYSIS; ATTITUDE CONTROL; ORBITAL LIFETIME; SPACECRAFT CONTROL; AERODYNAMIC DRAG; DRAG; TORQUE; ORBITAL MANEUVERS; ARTIFICIAL SATELLITES; COMPUTERIZED SIMULATION; MISSION PLANNING; SOLAR FLUX; PITCH (INCLINATION); PROPELLANT CONSUMPTION; ATMOSPHERIC DENSITY; METEOROLOGY...
Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 938
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 162
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Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309170311
Category : Science
Languages : en
Pages : 317
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Safe Passage: Astronaut Care for Exploration Missions sets forth a vision for space medicine as it applies to deep space voyage. As space missions increase in duration from months to years and extend well beyond Earth's orbit, so will the attendant risks of working in these extreme and isolated environmental conditions. Hazards to astronaut health range from greater radiation exposure and loss of bone and muscle density to intensified psychological stress from living with others in a confined space. Going beyond the body of biomedical research, the report examines existing space medicine clinical and behavioral research and health care data and the policies attendant to them. It describes why not enough is known today about the dangers of prolonged travel to enable humans to venture into deep space in a safe and sane manner. The report makes a number of recommendations concerning NASA's structure for clinical and behavioral research, on the need for a comprehensive astronaut health care system and on an approach to communicating health and safety risks to astronauts, their families, and the public.
Author: Malcolm Macdonald
Publisher: Springer
ISBN: 3642411010
Category : Technology & Engineering
Languages : en
Pages : 728
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Book Description
This comprehensive handbook provides an overview of space technology and a holistic understanding of the system-of-systems that is a modern spacecraft. With a foreword by Elon Musk, CEO and CTO of SpaceX, and contributions from globally leading agency experts from NASA, ESA, JAXA, and CNES, as well as European and North American academics and industrialists, this handbook, as well as giving an interdisciplinary overview, offers, through individual self-contained chapters, more detailed understanding of specific fields, ranging through: · Launch systems, structures, power, thermal, communications, propulsion, and software, to · entry, descent and landing, ground segment, robotics, and data systems, to · technology management, legal and regulatory issues, and project management. This handbook is an equally invaluable asset to those on a career path towards the space industry as it is to those already within the industry.
Author: United States. Columbia Accident Investigation Board
Publisher: U.S. Independent Agencies and Commission
ISBN:
Category : Science
Languages : en
Pages : 260
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Book Description
CD-ROM accompanying vol. 1 contains text of vol. 1 in PDF files and six related motion picture files in Quicktime format.
Author:
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ISBN:
Category : Electric propulsion
Languages : en
Pages : 14
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Author: Florian Sellmaier
Publisher: Springer Nature
ISBN: 3030885933
Category : Technology & Engineering
Languages : en
Pages : 610
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Book Description
This book describes the basic concepts of spacecraft operations for both manned and unmanned missions. The first part of the book provides a brief overview of the space segment. The next four parts deal with the classic areas of space flight operations: mission operations, communications and infrastructure, the flight dynamics system, and the mission planning system. This is followed by a part describing the operational tasks of the various subsystems of a classical satellite in Earth orbit. The last part describes the special requirements of other mission types due to the presence of astronauts, the approach of a satellite to another target satellite, or leaving Earth orbit in interplanetary missions and landing on other planets and moons. The 2nd edition is published seven years after the first edition. It contains four new chapters on flight procedures, the human factors, ground station operation, and software and systems. In addition, several chapters have been extensively expanded. The entire book has been brought up to date and the language has been revised. This book is based on the “Spacecraft Operations Course” held at the German Space Operations Center. However, the target audience of this book is not only the participants of the course, but also students of technical and scientific courses, as well as technically interested people who want to gain a deeper understanding of spacecraft operations.
Author:
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ISBN:
Category : Aeronautics
Languages : en
Pages : 892
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