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Author : P. E. Schmid
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (31 download)
Download or read book Lunar Far-side Communication Satellites written by P. E. Schmid and published by . This book was released on 1968 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jeffrey Ralph Kurland
Publisher :
ISBN 13 :
Total Pages : 211 pages
Book Rating : 4.:/5 (141 download)
Download or read book Analysis of a Communication Satellite for Lunar Far-side Exploration written by Jeffrey Ralph Kurland and published by . This book was released on 1970 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781720450795
Total Pages : 70 pages
Book Rating : 4.4/5 (57 download)
Download or read book Conceptual Design of a Communications Relay Satellite for a Lunar Sample Return Mission written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-29 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2003, NASA solicited proposals for a robotic exploration of the lunar surface. Submissions were requested for a lunar sample return mission from the South Pole-Aitken Basin. The basin is of interest because it is thought to contain some of the oldest accessible rocks on the lunar surface. A mission is under study that will land a spacecraft in the basin, collect a sample of rock fragments, and return the sample to Earth. Because the Aitken Basin is on the far side of the Moon, the lander will require a communications relay satellite (CRS) to maintain contact with the Earth during its surface operation. Design of the CRS's orbit is therefore critical. This paper describes a mission design which includes potential transfer and mission orbits, required changes in velocity, orbital parameters, and mission dates. Several different low lunar polar orbits are examined to compare their availability to the lander versus the distance over which they must communicate. In addition, polar orbits are compared to a halo orbit about the Earth-Moon L2 point, which would permit continuous communication at a cost of increased fuel requirements and longer transmission distances. This thesis also examines some general parameters of the spacecraft systems for the mission under study. Mission requirements for the lander dictate the eventual choice of mission orbit. This mission could be the first step in a period of renewed lunar exploration and eventual human landings.Brunner, Christopher W.Langley Research CenterRELAY SATELLITES; SAMPLE RETURN MISSIONS; SATELLITE DESIGN; LUNAR GEOLOGY; STRUCTURAL BASINS; COSTS; LUNAR ROCKS; LUNAR SOIL; ECCENTRIC ORBITS; FLYBY MISSIONS; TIME OF FLIGHT SPECTROMETERS; EARTH-MOON SYSTEM
Author : Christopher W. Brunner
Publisher : BiblioGov
ISBN 13 : 9781289146177
Total Pages : 72 pages
Book Rating : 4.1/5 (461 download)
Download or read book Conceptual Design of a Communications Relay Satellite for a Lunar Sample Return Mission written by Christopher W. Brunner and published by BiblioGov. This book was released on 2013-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2003, NASA solicited proposals for a robotic exploration of the lunar surface. Submissions were requested for a lunar sample return mission from the South Pole-Aitken Basin. The basin is of interest because it is thought to contain some of the oldest accessible rocks on the lunar surface. A mission is under study that will land a spacecraft in the basin, collect a sample of rock fragments, and return the sample to Earth. Because the Aitken Basin is on the far side of the Moon, the lander will require a communications relay satellite (CRS) to maintain contact with the Earth during its surface operation. Design of the CRS's orbit is therefore critical. This paper describes a mission design which includes potential transfer and mission orbits, required changes in velocity, orbital parameters, and mission dates. Several different low lunar polar orbits are examined to compare their availability to the lander versus the distance over which they must communicate. In addition, polar orbits are compared to a halo orbit about the Earth-Moon L2 point, which would permit continuous communication at a cost of increased fuel requirements and longer transmission distances. This thesis also examines some general parameters of the spacecraft systems for the mission under study. Mission requirements for the lander dictate the eventual choice of mission orbit. This mission could be the first step in a period of renewed lunar exploration and eventual human landings.
Download or read book Development of a Long-term Earth-Moon Trans-lunar Libration Point Orbit for a Communication Relay Satellite written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Given the absence of an orbital system to communicate from the far side of the Moon, it is likely that such a system shall be needed in the near future with the continued interest in lunar exploration and utilization. A strategy for a long-term libration orbit at the Earth-Moon L2 point is developed. This strategy allows for uninterrupted two-way communication between the Earth and the far side of the Moon and vice versa while also maintaining low fuel costs, thus increasing the duration of possible missions. A scenario was created in STK that created such an orbit. The results of the scenario predict a total station keeping delta-V cost of only 3.23 m/s for a satellite to stay in the vicinity of the EML2 point for five years.
Author : Paul D. Spudis
Publisher : Smithsonian Institution
ISBN 13 : 1588345033
Total Pages : 254 pages
Book Rating : 4.5/5 (883 download)
Download or read book The Value of the Moon written by Paul D. Spudis and published by Smithsonian Institution. This book was released on 2016-04-26 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: While the Moon was once thought to hold the key to space exploration, in recent decades, the U.S. has largely turned its sights toward Mars and other celestial bodies instead. In The Value of the Moon, lunar scientist Paul Spudis argues that the U.S. can and should return to the moon in order to remain a world leader in space utilization and development and a participant in and beneficiary of a new lunar economy. Spudis explores three reasons for returning to the Moon: it is close, it is interesting, and it is useful. The proximity of the Moon not only allows for frequent launches, but also control of any machinery we place there. It is interesting because recorded deep on its surface and in its craters is the preserved history of the moon, the sun, and indeed the entire galaxy. And finally, the moon is useful because it is rich with materials and energy. The moon, Spudis argues, is a logical base for further space exploration and even a possible future home for us all. Throughout his work, Spudis incorporates details about man's fascination with the moon and its place in our shared history. He also explores its religious, cultural, and scientific resonance and assesses its role in the future of spaceflight and our national security and prosperity.
Author : Leonard David (Space journalist)
Publisher : National Geographic Books
ISBN 13 : 1426217587
Total Pages : 292 pages
Book Rating : 4.4/5 (262 download)
Download or read book Mars written by Leonard David (Space journalist) and published by National Geographic Books. This book was released on 2016 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: The next frontier in space exploration is Mars, the red planet--and human habitation of Mars isn't much farther off. Now the National Geographic Channel goes years fast-forward with "Mars," a six-part series documenting and dramatizing the next 25 years as humans land on and learn to live on Mars. This companion book to the series explores the science behind the mission and the challenges awaiting those brave individuals. Filled with vivid photographs taken on Earth, in space, and on Mars; arresting maps; and commentary from the world's top planetary scientists, this fascinating book will take you millions of miles away--and decades into the future--to our next home in the solar system.
Author : Michael Dumiak
Publisher : Black Dog Press
ISBN 13 : 9781910433591
Total Pages : 192 pages
Book Rating : 4.4/5 (335 download)
Download or read book Woods and the Sea written by Michael Dumiak and published by Black Dog Press. This book was released on 2018-08-07 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Woods and The Sea: Estonian Design and the Virtual Frontier' explores how Estonian designers have found ways to stoke creative spirit and forge distinctive goods, by their sense of place and historical interests. As a small nation on the Baltic coast, Estonia has acted as a port between Eastern Europe and Russia. In a small and often turbulent environment, its designers engage every aspect of Estonian culture, from stern Soviet orthodoxy to whirlwind globalisation, to a wired and forward-thinking social nature, to the constants of seaside life, and to mushroom hunting in the deep woods. 'Woods and The Sea' presents the stories and personalities of Estonian design and its distinctive style by taking the reader to its sources. 'Woods and the Sea' is structured in three parts; a long-form narrative portrait of Estonian designers, and the development of a distinct style, followed by essays exploring the history of Estonian design, and finally the current situation and future prospects of Estonian design.
Author : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 478 pages
Book Rating : 4.F/5 ( download)
Download or read book NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration Scientific and Technical Information Division and published by . This book was released on 1968 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher :
ISBN 13 :
Total Pages : 470 pages
Book Rating : 4.E/5 ( download)
Download or read book A Selected Listing of NASA Scientific and Technical Reports written by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division and published by . This book was released on 1969 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Willard Farquhar
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Utilization of Halo Orbits in Advanced Lunar Operations written by Robert Willard Farquhar and published by . This book was released on 1971 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yingmin Jia
Publisher : Springer Nature
ISBN 13 : 9813296860
Total Pages : 736 pages
Book Rating : 4.8/5 (132 download)
Download or read book Proceedings of 2019 Chinese Intelligent Systems Conference written by Yingmin Jia and published by Springer Nature. This book was released on 2019-09-07 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book showcases new theoretical findings and techniques in the field of intelligent systems and control. It presents in-depth studies on a number of major topics, including: Multi-Agent Systems, Complex Networks, Intelligent Robots, Complex System Theory and Swarm Behavior, Event-Triggered Control and Data-Driven Control, Robust and Adaptive Control, Big Data and Brain Science, Process Control, Intelligent Sensor and Detection Technology, Deep learning and Learning Control, Guidance, Navigation and Control of Aerial Vehicles, and so on. Given its scope, the book will benefit all researchers, engineers, and graduate students who want to learn about cutting-edge advances in intelligent systems, intelligent control, and artificial intelligence.
Author : Ben Bova
Publisher : ibooks
ISBN 13 : 1596876875
Total Pages : 506 pages
Book Rating : 4.5/5 (968 download)
Download or read book Are We Alone in the Cosmos? The Search for Alien Contact in the New Millenium written by Ben Bova and published by ibooks. This book was released on 2010-07-15 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt: Are we alone in this cosmos, or do we yet have to come to terms with the actual existence of alien life? Never before has so much time and concentrated effort been spent by so many scientists and writers in the pursuit of the answer to this fundamental question. In this extraordinary book, major scientists involved in the search for extraterrestrial intelligence known as SETI explain their work and reveal their secret thoughts. Now, in joining them here, are some of the best speculative thinkers, from Arthur C. Clarke and Isaac Asimov to Gregory Benford, who address the major philosophical questions involved. Intriguing, suspense-filled and intense, this book promises to deliver more than just mundane facts and theory.
Author : Grant Heiken
Publisher : CUP Archive
ISBN 13 : 9780521334440
Total Pages : 796 pages
Book Rating : 4.3/5 (344 download)
Download or read book Lunar Sourcebook written by Grant Heiken and published by CUP Archive. This book was released on 1991-04-26 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only work to date to collect data gathered during the American and Soviet missions in an accessible and complete reference of current scientific and technical information about the Moon.
Author :
Publisher :
ISBN 13 :
Total Pages : 1338 pages
Book Rating : 4.3/5 (243 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Francis Lyall
Publisher : Routledge
ISBN 13 : 1317051971
Total Pages : 611 pages
Book Rating : 4.3/5 (17 download)
Download or read book Space Law written by Francis Lyall and published by Routledge. This book was released on 2016-04-01 with total page 611 pages. Available in PDF, EPUB and Kindle. Book excerpt: The opening of space to exploration and use has had profound effects on society. Remote sensing by satellite has improved meteorology, land use and the monitoring of the environment. Satellite television immediately informs us visually of events in formerly remote locations, as well as providing many entertainment channels. World telecommunication facilities have been revolutionised. Global positioning has improved transport. This book examines the varied elements of public law that lie behind and regulate the use of space. It also makes suggestions for the development and improvement of the law, particularly as private enterprise plays an increasing role in space.
Author : Robert Willard Farquhar
Publisher :
ISBN 13 :
Total Pages : 140 pages
Book Rating : 4.:/5 (31 download)
Download or read book The Control and Use of Libration-point Satellites written by Robert Willard Farquhar and published by . This book was released on 1970 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
