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Author: National Aeronautics Administration
Publisher: CreateSpace
ISBN: 9781503059344
Category :
Languages : en
Pages : 164
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Book Description
This handbook provides information for trajectory designers and mission planners to determine Earth-Mars and Mars-Earth mission opportunities for the years 2009-2024. These studies were performed in support of a human Mars mission scenario that will consist of two cargo launches followed by a piloted mission during the next opportunity approximately 2 years later. "Porkchop" plots defining all of these mission opportunities are provided which include departure energy, departure excess speed, departure declination arrival excess speed, and arrival declinations for the mission space surrounding each opportunity. These plots are intended to be directly applicable for the human Mars mission scenario described briefly herein. In addition, specific trajectories and several alternate trajectories are recommended for each cargo and piloted opportunity. Finally, additional studies were performed to evaluate the effect of various thrust-to-weight ratios on gravity losses and total time-of-flight tradeoff, and the resultant propellant savings and are briefly summarized.
Author: National Aeronautics Administration
Publisher: CreateSpace
ISBN: 9781503059344
Category :
Languages : en
Pages : 164
Get Book
Book Description
This handbook provides information for trajectory designers and mission planners to determine Earth-Mars and Mars-Earth mission opportunities for the years 2009-2024. These studies were performed in support of a human Mars mission scenario that will consist of two cargo launches followed by a piloted mission during the next opportunity approximately 2 years later. "Porkchop" plots defining all of these mission opportunities are provided which include departure energy, departure excess speed, departure declination arrival excess speed, and arrival declinations for the mission space surrounding each opportunity. These plots are intended to be directly applicable for the human Mars mission scenario described briefly herein. In addition, specific trajectories and several alternate trajectories are recommended for each cargo and piloted opportunity. Finally, additional studies were performed to evaluate the effect of various thrust-to-weight ratios on gravity losses and total time-of-flight tradeoff, and the resultant propellant savings and are briefly summarized.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781723185052
Category :
Languages : en
Pages : 164
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Book Description
This paper provides information for trajectory designers and mission planners to determine Earth-Mars and Mars-Earth mission opportunities for the years 2009-2024. These studies were performed in support of a human Mars mission scenario that will consist of two cargo launches followed by a piloted mission during the next opportunity approximately 2 years later. "Porkchop" plots defining all of these mission opportunities are provided which include departure energy, departure excess speed, departure declination arrival excess speed, and arrival declinations for the mission space surrounding each opportunity. These plots are intended to be directly applicable for the human Mars mission scenario described briefly herein. In addition, specific trajectories and several alternate trajectories are recommended for each cargo and piloted opportunity. Finally, additional studies were performed to evaluate the effect of various thrust-to-weight ratios on gravity losses and total time-of-flight tradeoff, and the resultant propellant savings and are briefly summarized. George, L. E. and Kos, L. D. Marshall Space Flight Center EARTH-MARS TRAJECTORIES; TRAJECTORY PLANNING; INTERPLANETARY FLIGHT; MANNED SPACE FLIGHT; MISSION PLANNING; HANDBOOKS; MANNED MARS MISSIONS; MARS EXPLORATION; THRUST-WEIGHT RATIO; TRADEOFFS; CARGO SPACECRAFT; RETURN TO EARTH SPACE FLIGHT; NASA SPACE PROGRAMS...
Author: L. E. George
Publisher:
ISBN:
Category :
Languages : en
Pages : 97
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Book Description
This paper provides information for trajectory designers and mission planners to determine Earth-Mars and Mars-Earth mission opportunities for the years 2009-2024. These studies were performed in support of a human Mars mission scenario that will consist of two cargo launches followed by a piloted mission during the next opportunity approximately 2 years later. "Porkchop" plots defining all of these mission opportunities are provided which include departure energy, departure excess speed, departure declination arrival excess speed, and arrival declinations for the mission space surrounding each opportunity. These plots are intended to be directly applicable for the human Mars mission scenario described briefly herein. In addition, specific trajectories and several alternate trajectories are recommended for each cargo and piloted opportunity. Finally, additional studies were performed to evaluate the effect of various thrust-to-weight ratios on gravity losses and total time-of-flight tradeoff, and the resultant propellant savings and are briefly summarized.
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781719494335
Category :
Languages : en
Pages : 92
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Book Description
The purpose of this Mission Design Handbook is to provide trajectory designers and mission planners with graphical information about Earth to Mars ballistic trajectory opportunities for the years of 2026 through 2045. The plots, displayed on a departure date/arrival date mission space, show departure energy, right ascension and declination of the launch asymptote, and target planet hyperbolic arrival excess speed, V(sub infinity), for each launch opportunity. Provided in this study are two sets of contour plots for each launch opportunity. The first set of plots shows Earth to Mars ballistic trajectories without the addition of any deep space maneuvers. The second set of plots shows Earth to Mars transfer trajectories with the addition of deep space maneuvers, which further optimize the determined trajectories. The accompanying texts explains the trajectory characteristics, transfers using deep space maneuvers, mission assumptions and a summary of the minimum departure energy for each opportunity. Burke, Laura M. and Falck, Robert D. and McGuire, Melissa L. Glenn Research Center TRAJECTORIES; LAUNCHING; MISSION PLANNING; ASYMPTOTES; TARGETS; DEEP SPACE; HANDBOOKS; BALLISTIC TRAJECTORIES; DECLINATION; MARS MISSIONS; SPACE MISSIONS
Author: Giorgio Fasano
Publisher: Springer
ISBN: 3030105016
Category : Mathematics
Languages : en
Pages : 478
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Book Description
This book presents advanced case studies that address a range of important issues arising in space engineering. An overview of challenging operational scenarios is presented, with an in-depth exposition of related mathematical modeling, algorithmic and numerical solution aspects. The model development and optimization approaches discussed in the book can be extended also towards other application areas. The topics discussed illustrate current research trends and challenges in space engineering as summarized by the following list: • Next Generation Gravity Missions • Continuous-Thrust Trajectories by Evolutionary Neurocontrol • Nonparametric Importance Sampling for Launcher Stage Fallout • Dynamic System Control Dispatch • Optimal Launch Date of Interplanetary Missions • Optimal Topological Design • Evidence-Based Robust Optimization • Interplanetary Trajectory Design by Machine Learning • Real-Time Optimal Control • Optimal Finite Thrust Orbital Transfers • Planning and Scheduling of Multiple Satellite Missions • Trajectory Performance Analysis • Ascent Trajectory and Guidance Optimization • Small Satellite Attitude Determination and Control • Optimized Packings in Space Engineering • Time-Optimal Transfers of All-Electric GEO Satellites Researchers working on space engineering applications will find this work a valuable, practical source of information. Academics, graduate and post-graduate students working in aerospace, engineering, applied mathematics, operations research, and optimal control will find useful information regarding model development and solution techniques, in conjunction with real-world applications.
Author: Andrea Sommariva
Publisher: Vernon Press
ISBN: 1622734319
Category : Business & Economics
Languages : en
Pages : 258
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Book Description
This book provides answers to the questions of why human-kind should go into space, and on the relative roles of governments and markets in the evolution of the space economy. It adopts an interdisciplinary approach to answer those questions. Science and technology define the boundaries of what is possible. The realization of the possible depends on economic, institutional, and political factors. The book thus draws from many different academic areas such as physical science, astronomy, astronautics, political science, economics, sociology, cultural studies, and history. In the literature, the space economy has been analyzed using different approaches from science and technology to the effects of public expenditures on economic growth and to medium term effects on productivity and growth. This book brings all these aspects together following the evolutionary theory of economic change. It studies processes that transform the economy through the interactions among diverse economic agents, governments, and the extra-systemic environment in which governments operate. Its historical part helps to better understand motivations and constraints - technical, political, and economical - that shaped the growth of the space economy. In the medium term, global issues - such as population changes, critical or limited natural resources, and environmental damages – and technological innovations are the main drivers for the evolution of the space economy beyond Earth orbit. In universities, this book can be used: as a reference by historians of astronautics; for researchers in the field of astronautics, international political economy, and legal issues related to the space economy. In think tanks and public institutions, both national and international, this book provides an input to the ongoing debate on the collaboration among space agencies and the role of private companies in the development of the space economy. Finally, this book will help the educated general public to orient himself in the forest of stimuli, news, and solicitations to which he is daily subjected by the media, television and radio, and to react in less passive ways to those stimuli.
Author: Laura M. Burke
Publisher:
ISBN:
Category :
Languages : en
Pages : 85
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Book Description
Author: Giovanni Bignami
Publisher: Springer
ISBN: 1137526580
Category : Social Science
Languages : en
Pages : 205
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Book Description
For several decades it has been widely accepted that human space exploration is the exclusive domain of government agencies. The cost of performing such missions, estimated in multiple reports to amount to hundreds of billions dollars over decades, was far beyond what private entities could afford. That arrangement seems to be changing. Buoyed by the success of its program to develop commercial cargo capabilities to support the International Space Station, NASA is becoming increasingly open to working with the private sector in its human space exploration plans. The new private-public partnership will make 'planet hopping' feasible. This book analyses the move towards planet hopping, which sees human outposts moving across the planetary dimensions, from the Moon to Near-Earth Asteroids and Mars. It critically assesses the intention to exploit space resources and how successful these missions will be for humanity. This insightful and accessible book will be of great interest to scholars and students of space policy and politics, international studies, and science and technology studies.
Author: Lance K. Erickson
Publisher: Rowman & Littlefield
ISBN: 0865874190
Category : Astronautics
Languages : en
Pages : 668
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Book Description
This book offers a comprehensive look at the history of space exploration, the technology that makes it possible, and the continued efforts that promise to carry us into the future. It goes through the history of space exploration, from the earliest sub-orbital and orbital missions to today's deep-space probes, to provide a close look at past and present projects, then turns its attention to programs being planned today and to the significance of future exploration. Both the novice and the advanced student of space exploration stand to profit from the author's engaging and insightful discussion.
Author: Emil Vassev
Publisher: Springer
ISBN: 3319098160
Category : Computers
Languages : en
Pages : 260
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Book Description
Advanced space exploration is performed by unmanned missions with integrated autonomy in both flight and ground systems. Risk and feasibility are major factors supporting the use of unmanned craft and the use of automation and robotic technologies where possible. Autonomy in space helps to increase the amount of science data returned from missions, perform new science, and reduce mission costs. Elicitation and expression of autonomy requirements is one of the most significant challenges the autonomous spacecraft engineers need to overcome today. This book discusses the Autonomy Requirements Engineering (ARE) approach, intended to help software engineers properly elicit, express, verify, and validate autonomy requirements. Moreover, a comprehensive state-of-the-art of software engineering for aerospace is presented to outline the problems handled by ARE along with a proof-of-concept case study on the ESA's BepiColombo Mission demonstrating the ARE’s ability to handle autonomy requirements.
