Computer Science – Robotics
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1208..557l&link_type=abstract
SPACE, PROPULSION & ENERGY SCIENCES INTERNATIONAL FORMUM SPESIF-2010: 14th Conference on Thermophysics Applications in Micrograv
Computer Science
Robotics
Mars, Extraterrestrial Life, Clouds, Robots, Spacecraft, Mars, Astrobiology And Extraterrestrial Materials, Circumstellar Shells, Clouds, And Expanding Envelopes, Circumstellar Masers, Robotics, Spacecraft/Atmosphere Interactions
Scientific paper
Like Mars, Europa and Titan are worlds for which we have a special fascination. In the past two centuries, our curiosity has been stimulated by the possibility of the existence of life on Mars, and that it would be the first planet to be visited by humans. Nevertheless, there are several driving motivations that impel humans to survey Europa for astrobiological purposes and colonize Titan in order to utilize its resources. The biggest constraint for this manned spaceflight will however be the very long distances between Earth, Jupiter and Saturn. In consequence, this will lead to a very long mission duration which will be the main concern from the standpoint of human factors, especially based on our current technological capability in such fields. It is also important to note that all our eggs are currently in one basket like the dinosaurs before the extinction. If we do not make a push into space and all things go environmentally wrong, we will be just as extinct. This environmental exploration for such missions will help us save the planet and humans. In order to cut down on the mission duration, a fast transit method known as ``one-tangent-burn'' trajectory is recommended to be used instead of Hohmann transfer. But this will cost an increase in the required total ΔV. Most importantly, a rare launch-window opportunity is conceived to occur in 2078, in which these sites i.e. Mars, Europa and Titan will be aligned in such a way that they can be visited in one mission taking advantage of the gravity assists from Mars and Jupiter. This specific launch window will not recur for decades. The trajectories, orbits and planetary configurations both at the time of this launch window and arrival to these sites as well as the return missions are calculated and depicted by the computer programs designed in MATLAB for this purpose. Finally, it is shown that the gravity assist that the spacecraft receives at each swingby maneuver will drastically decrease the mission duration.
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