An optimal ALMA image of the Hubble Ultra Deep Field in the era of JWST : obscured star formation and the cosmic far-infrared background
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SEARCH · Engineering Papers
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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Particle and field theory research related to satellites and space probes
Particles and fields research since 1958 - solar wind effect on earth, radiation belts, earth magnetic field, solar energetic particles and ground effects, cosmic rays, and neutrons
Future possibilities of satellite communications and designs of three basic satellite systems
Cosmic radio wave, whistler and transmitted radio wave interactions with ionospheric magnetoplasma in collision-dominated, photoequilibrium and photoionization-dominated regions
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Legal implications in technological advances
Mars surface, environment and electrical, thermal and mechanical properties
Space station, shuttle and tug as post-Apollo space program, discussing objective, designs and systems analysis
Review of the current thinking on the space science, exploration, and application plans and policies that are to take advantage of the widened capabilities to be provided by the shuttle and the sortie mode of the shuttle. Present planning activities and plans for the next year are discussed.
Three separate and distinct modes of using the space shuttle system have been identified. These modes include the boost of a spacecraft plus one or more propulsion stages into earth orbit or parking orbit, the establishment and maintenance of automated observatories in space, and the support of exploratory research and instrument development. Studies show that approximately 60% of all planned NASA missions require a shuttle third stage. Illustrations are presented to show how the largest spacecraft, Viking, and its propulsion system, Centaur, and a communications satellite, with an Agena stage to place it into a geostationary orbit, would fit into the shuttle. Results of the NASA Shuttle Sortie Workshop studies are discussed together with prospects of European cooperation in future workshop experiments.
This paper discusses the definition of facilities which will serve the research needs of a large group of users. These facilities (payloads) are derived by several combinations of items from a large inventory of modular, reusable research equipment, enabling us to respond to many flight opportunities. Workable concepts have been laid out and inputted into the Spacelab design activity. These designs permit the flying of either partial or dedicated payloads. Also addressed in this paper are the technical integrity of the modular approach to payload design and integration, and the utility of commercial equipment technology.
Conceptual design studies are summarized of tandem-rotor helicopter and tilt-rotor aircraft for a short haul transport mission in the 1985 time frame. Vertical takeoff designs of both configurations are discussed, and the impact of external noise criteria on the vehicle designs, performance, and costs are shown. A STOL design for the tilt-rotor configuration is reported, and the effect of removing the vertical takeoff design constraints on the design parameters, fuel economy, and operating cost is discussed.
Results of a state-of-the-art assessment of technology areas which affect the Earth Resources Program are presented along with a functional description of the basic earth resources system. Major areas discussed include: spacecraft flight hardware, remote sensors, data processing techniques and hardware, user models, user interfaces, and operations technology.