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Rocket flight equations, spacecraft construction, interplanetary exploration, solar energy, human engineering, and instrumentation for space flight
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Rocket flight equations, spacecraft construction, interplanetary exploration, solar energy, human engineering, and instrumentation for space flight
Introduction: Analogue environments assist the NASA Human Research Program (HRP) in developing capabilities to mitigate high risk issues to crew health and performance for space exploration. The Habitat Demonstration Unit (HDU) is an analogue habitat used to assess space-related products for planetary missions. The Exploration Medical Capability (ExMC) element at the NASA Johnson Space Center (JSC) was tasked with developing planetary-relevant medical scenarios to evaluate the concept of operations for mitigating medical issues in such an environment. Methods: Two medical scenarios were conducted within the simulated planetary habitat with the crew executing two space flight-relevant procedures: Eye Examination with a corneal injury and Skin Laceration. Remote guidance for the crew was provided by a flight surgeon (FS) stationed at a console outside of the habitat. Audio and video data were collected to capture the communication between the crew and the FS, as well as the movements of the crew executing the procedures. Questionnaire data regarding procedure content and remote guidance performance also were collected from the crew immediately after the sessions. Results: Preliminary review of the audio, video, and questionnaire data from the two scenarios conducted within the HDU indicate that remote guidance techniques from an FS on console can help crew members within a planetary habitat mitigate planetary-relevant medical issues. The content and format of the procedures were considered concise and intuitive, respectively. Discussion: Overall, the preliminary data from the evaluation suggest that use of remote guidance techniques by a FS can help HDU crew execute space exploration-relevant medical procedures within a habitat relevant to planetary missions, however further evaluations will be needed to implement this strategy into the complete concept of operations for conducting general space medicine within similar environments
Manned Venus and Mars flyby reconnaissance missions
Ground system design, data processing, digital command and digital-human interface in flight operations problems for unmanned spacecraft on planetary exploration mission
Thrust maneuver at Venus for optimum Earth-Mars rendezvous trajectory in flyby mission
Problems and possibilities of exploring Mars surface by manned landings
Study of protection requirements for resistance of meteorite penetration damage for various interplanetary spacecraft systems
Trajectory characteristics of high-thrust Mars missions and effect on other aspects of mission planning
Problems involved in manned exploration of Mars surface
Asteroid belt flyby spacecraft concepts based on Atlas family with potential growth for Jupiter flyby
Jupiter swingby missions to outer planets
Optimum power system configurations for planetary spacecraft probes
Manned orbiting stopover round trips to Venus are studied for departure dates between 1975 and 1986 over a range of trip times and stay times. The use of highly elliptic parking orbits at Venus leads to low initial weights in Earth orbit compared with circular orbits. For the elliptic parking orbit, the effect of constraints on the low altitude observation time on the initial weight is shown. The mission can be accomplished with the Apollo level of chemical propulsion, but advanced chemical or nuclear propulsion can give large weight reductions. The Venus orbiting mission weights than the corresponding Mars mission.
Bibliography of publications on bioscience, physical space science, electronics, chemical and electric propulsion, fluid physics, and planetary and interplanetary missions
Return-to-earth trajectories from Mars with Venus swingby for 1971-1999
Trajectory characteristics of high thrust Mars missions and effect on other aspects of mission planning
Vehicle mass requirements for optimal high and low thrust propulsion systems for manned and unmanned planetary missions