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Planetary Science Decadal Survey
Planetary Science Decadal Survey
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NASA Technical Documents
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Independent Tracking Coordination Program - trigonometric tables for calculating coordinates of satellites
Topics: COORDINATES, TRACKING SYSTEM, TRIGONOMETRY, COORDINATION, MATHEMATICAL TABLES, SATELLITE TRACKING,...
Methane, methanol, glycerol, and hydrocarbons for microbial life support systems on extended space missions, animal links in closed system, use of wastes, and chemical synthesis of food
Topics: HYDROCARBONS, HUMAN WASTES, MICROBIOLOGY, MICROORGANISMS, NUTRIENTS, SPACE MISSIONS, SPACECRAFT...
NASA Technical Documents
by Wolverton, B. C.; Douglas, Willard L.; Bounds, Keit
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Previously, preliminary data on the ability of a group of common indoor plants to remove organic chemical from indoor air was presented. The group of plants chosen for this study was determined by joint agreement between NASA and the Associated Landscape Contractors of America. The chemicals chosen for study were benzene, trichloroethylene, and formaldehyde. The results show that plants can play a major role in removal of organic chemicals from indoor air.
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Topics: ARTIFICIAL INTELLIGENCE, FUZZY SETS, FUZZY SYSTEMS, NEURAL NETS, SET THEORY, DYNAMICAL SYSTEMS,...
NASA Technical Documents
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No Abstract Available
Topics: APOLLO PROJECT, COMMAND SERVICE MODULES, LUNAR MODULE, MISSION PLANNING, SPACECRAFT DESIGN, SPACE...
NASA Technical Documents
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Transformation of data into knowledge through conceptual induction has been the focus of our research described in this paper. We have developed a Machine Learning System (MLS) to analyze the rocket engine simulation data. MLS can provide to its users fault analysis, characteristics, and conceptual descriptions of faults, and the relationships of attributes and sensors. All the results are critically important in identifying faults.
Topics: DYNAMIC LOADS, DIMENSIONAL ANALYSIS, FAILURE MODES, LOAD DISTRIBUTION (FORCES), STRAIN...
NASA Technical Documents
by Oberth, H
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A theoretical analysis of the parameters involved in spacecraft design and propulsion and the successful completion of space missions is presented. Various types of rockets and their specialized application are described. The physiological effects of space flight are discussed. The requirements for fuel, specific impulse, and energy considerations are included.
Topics: BOUNDARY LAYER SEPARATION, DIFFUSERS, NONUNIFORM FLOW, SEPARATED FLOW, PRESSURE GRADIENTS, VELOCITY...
Planetary Science Decadal Survey
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The Moon's regolith contains vast resources of helium-3 an ideal fuel for terrestrial fusion power systems. Development of plans for private sector investment in obtaining helium-3 and its by-products requires detailed definition of that isotope's selenographic distribution.
NASA Technical Documents
by Braverman, A. S.; Grodko, L. N.; Leykand, M. A.; Mil, M. L.; Nekrasov, A. V
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Rotor aerodynamics in relation to historical and ideal development of helicopters
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Topics: AERODYNAMICS, HELICOPTER DESIGN, HELICOPTERS, HISTORIES, ROTOR AERODYNAMICS, HELICOPTER DESIGN,...
NASA Technical Documents
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No Abstract Available
Topics: COMMUNICATION NETWORKS, RELIABILITY ENGINEERING, TOPOLOGY, FAILURE ANALYSIS, FAULT TREES, GRAPH...
NASA Technical Documents
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No Abstract Available
Topics: MARS PROBES, THRUST AUGMENTATION, UNMANNED SPACECRAFT, DECELERATION, PAYLOADS, REENTRY
NASA Technical Documents
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The Scout launch vehicle program, hardware, and systems are reviewed. Scout reliability and quality assurance provisions, procurement, launch sites and facilities, and financial data are also reported.
Topics: COMPUTER PROGRAMMING, LIFE CYCLE COSTS, MISSILES, QUANTITATIVE ANALYSIS, SEMANTICS, COMPUTER...
NASA Technical Documents
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All the basic areas of anthropometry and its applications to the design of clothing, equipment, and workspaces for manned space flight are presented.
Topics: CANCER, NEOPLASMS, RADIOBIOLOGY, TUMORS, CONFERENCES, HYPERTHERMIA, RADIATION THERAPY, RADIO...
NASA Technical Documents
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This handbook is intended to provide a ready reference for many of the solid and liquid lubricants used in the space industry. Lubricants and lubricant properties are arranged systematically so that designers, engineers, and maintenance personnel can conveniently locate data needed for their work. This handbook is divided into two major parts (A and B). Part A is a compilation of solid lubricant suppliers information on chemical and physical property of data of more than 250 solid lubricants,...
Topics: ARIZONA, GEOCHRONOLOGY, GEOLOGICAL FAULTS, GEOMAGNETISM, ROCK MECHANICS, TECTONICS, MAPPING,...
NASA Technical Documents
by Douglas, F. J
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Digital computer programs for analysis of large complex structures applied to NASTRAN project
Topics: EARTH IONOSPHERE, NONLINEARITY, PHASE VELOCITY, PLASMAS (PHYSICS), WAVE ATTENUATION, ELECTRIC...
NASA Technical Documents
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No Abstract Available
Topics: AEROSPACE INDUSTRY, GOVERNMENT/INDUSTRY RELATIONS, TECHNOLOGY UTILIZATION, AEROSPACE ENGINEERING,...
NASA Technical Documents
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This book is, in essence, sixteen years in the making. First attempted to compile a history of the Soviet space program in 1982 author put together a rough chronology of the main events. A decade later, while living on a couch in a college friend's apartment, he began writing what would be a short history of the Soviet lunar landing program. The first draft was sixty-nine pages long. Late the following year, he decided to expand the topic to handle all early Soviet piloted exploration programs....
Topics: STATISTICAL ANALYSIS, RADIATIVE TRANSFER, SOLAR RADIATION, CLOUD COVER, CLOUDS (METEOROLOGY),...
NASA Technical Documents
by Campbell, William A., Jr.; Marriott, Richard S
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Outgassing data, derived from tests at 398 K (125 C) for 24 hours in vacuum as per ASTM E 595-77, have been compiled for numerous materials for spacecraft use. The data presented are the total mass loss (TML) and the collected volatile condensable materials (CVCM). The various materials are compiled by likely usage and alphabetically.
Topics: NASA PROGRAMS, PROJECT MANAGEMENT, PRODUCT DEVELOPMENT, PERSONNEL DEVELOPMENT
NASA Technical Documents
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For abstract, see N74-22890.
Topics: BED REST, PATHOLOGICAL EFFECTS, PATIENTS, CARDIOVASCULAR SYSTEM, CLINICAL MEDICINE, MUSCULAR...
NASA Technical Documents
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No Abstract Available
Topics: ENGINE DESIGN, STRUCTURAL ANALYSIS, TURBOFAN ENGINES, BYPASSES, COST ANALYSIS, LIFE CYCLE COSTS,...
NASA Technical Documents
by Tomayko, James E
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This book examines the computer systems used in actual spaceflight or in close support of it. Each chapter deals with either a specific program, such as Gemini or Apollo onboard computers, or a closely related set of systems, such as launch processing or mission control. A glossary of computer terms is included.
Topics: BRIGHTNESS, STABILITY, TRAJECTORY ANALYSIS, QUASARS, STATISTICAL ANALYSIS, VARIABILITY, ASYMPTOTIC...
The AIAA/NASA Conference on Intelligent Robotics in Field, Factory, Service, and Space (CIRFFSS '94) was originally proposed because of the strong belief that America's problems of global economic competitiveness and job creation and preservations can partly be solved by the use of intelligent robotics, which are also required for human space exploration missions. Individual sessions addressed the following topics: (1) vision systems integration and architecture; (2) selective perception and...
Topics: COMPUTER NETWORKS, CENTRAL PROCESSING UNITS, RESEARCH AND DEVELOPMENT, COMPUTER SYSTEMS DESIGN,...
Planetary Science Decadal Survey
by Steven A. Hauck, II, Douglas A. Eng and George J. Tahu
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The purpose of this study was to determine the feasibility of a landed mission to Mercury. It was conducted by the JHU/APL Space Department in partnership with Marshall Space Flight Center, Glen Research Center, and Steven Hauck from Case Western Reserve University. This was conducted as a concept maturity level (CML) 3 study focusing on feasibility trades and options for concepts with a goal of determining whether such a mission could be accomplished within a Principal Investigator (PI)-led...
Topics: Mercury, Concept Study, NASA, Lander, Mission, Decadal
NASA Technical Documents
by NON
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The Bonner Durchmusterung (BD) is a visual survey of stars in the declination zones 89 deg to -01 deg. This volume contains the data for the declination range 89 deg to 30 deg. The survey, completed by Argelander and his assistants in the years 1852-1861, was performed and the stars cataloged by allowing the telescope to drift along the mean declination of each zone and recording the positions and magnitudes of stars crossing the transit line of each field. The goal of the survey was to obtain...
Topics: BOOSTER ROCKET ENGINES, PRODUCTION, PROVING, SCHEDULES, LIQUID PROPELLANT ROCKET ENGINES, PROJECT...
NASA Technical Documents
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The mandated elimination of CFC'S, Halons, TCA, and other ozone depleting chemicals and specific hazardous materials has required changes and new developments in aerospace materials and processes. The aerospace industry has been involved for several years in providing product substitutions, redesigning entire production processes, and developing new materials that minimize or eliminate damage to the environment. These activities emphasize replacement cleaning solvents and their application,...
Topics: AMINO ACIDS, RADIOACTIVITY, CARBON 14, ETHYL COMPOUNDS, NUCLEOTIDES, ENZYME ACTIVITY, THIOLS,...
NASA Technical Documents
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This bibliography lists 822 reports, articles and other documents introduced into the NASA Scientific and Technical Information System in 1988. Items are selected and grouped according to their usefulness to the manager as manager. Citations are grouped into ten subject categories: human factors and personnel issues; management theory and techniques; industrial management and manufacturing; robotics and expert systems; computers and information management; research and development; economics,...
Topics: ALGORITHMS, KALMAN FILTERS, LEAST SQUARES METHOD, NAVIGATION, POSITION ERRORS, POWER SPECTRA, RADAR...
NASA Technical Documents
by Krist, Sherrie L.; Biedron, Robert T.; Rumsey, Christopher L
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This document is the User's Manual for the CFL3D computer code, a thin-layer Reynolds-averaged Navier-Stokes flow solver for structured multiple-zone grids. Descriptions of the code's input parameters, non-dimensionalizations, file formats, boundary conditions, and equations are included. Sample 2-D and 3-D test cases are also described, and many helpful hints for using the code are provided.
Topics: NITRIC OXIDE, CARDIOVASCULAR SYSTEM, MOLECULES, ANTIDIURETICS, BARORECEPTORS, DEHYDRATION, DRUGS,...
NASA Technical Documents
by NON
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The User's Manual is one of four manuals that constitute the documentation for NASTRAN, the other three being the Theoretical Manual, the Programmer's Manual and the Demonstration Problem Manual. Although the User's Manual contains all of the information that is directly associated with the solution of problems with NASTRAN, the user will find it desirable to refer to the other manuals for assistance in the solution of specific user problems. The Theoretical Manual gives an excellent...
Topics: ALGORITHMS, COMPUTERIZED SIMULATION, DYNAMIC RESPONSE, FINITE ELEMENT METHOD, PARTIAL DIFFERENTIAL...
Planetary Science Decadal Survey
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The National Academy of Science's Decadal Survey (New Frontiers in the Solar System: An Integrated Exploration Strategy, 2003) recommended that NASA develop a medium-class mission to return a comet surface sample to Earth for laboratory analysis. NASA tasked the Applied Physics Laboratory to refine the concepts described in the Decadal Survey. As stated in the task guidelines: The study results will include a pre-phase A fidelity plan to implement the mission concept, evaluating the cost,...
Topics: Comets, NASA, Mission Concept Study, Decadal
NASA Technical Documents
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Theory of orbital mechanics of artificial earth satellites
Topics: ARTIFICIAL SATELLITES, SATELLITE ORBIT, SPACECRAFT MOTION, ATTRACTION, ELLIPTICITY, HYPERBOLAS,...
NASA Technical Documents
by BAZOV, D. I
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PRINCIPLES OF HELICOPTER FLIGHT UNDER VARIOUS CONDITIONS ARE REVIEWED, GIVING SPECIAL ATTENTION TO THE OPERATION OF THE MAIN ROTOR. A BRIEF HISTORY OF HELICOPTER DEVELOPMENT IS PRESENTED, TOGETHER WITH A SUMMARY OF THE MAIN COMPONENTS OF A HELICOPTER AND A CLASSIFICATION OF THE VARIOUS TYPES OF HELICOPTERS. THE CHARACTERISTICS OF THE MAIN ROTOR AND ITS OPERATION DURING AUTOROTATION AND DURING AXIAL AND OBLIQUE FLOW ARE CONSIDERED. ALSO CONSIDERED ARE VERTICAL AND HORIZONTAL FLIGHT, ALTITUDE...
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Topics: BALL BEARINGS, FATIGUE TESTS, LUBRICATING OILS, SERVICE LIFE, STEELS, AIRCRAFT ENGINES, HIGH...
NASA Technical Documents
by Tsiolkovskiy, K. E
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A classical, comprehensive collection of theoretical studies on interplanetary space travel, jet propulsion, and rocket technology is presented. Topics treated are: (1) escape velocity; (2) trajectories; (3) design considerations; (4) fuels; (5) food supplies and spacecraft environment during spaceflight; and (6) the general mechanics of spaceflight.
Topics: COMBUSTION CHAMBERS, EXHAUST GASES, POLLUTION CONTROL, AIR POLLUTION, DESIGN ANALYSIS
NASA Technical Documents
by Davis, S. J.; Rosenstein, H.; Stanzione, K. A.; Wisniewski, J. S
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No Abstract Available
Topics: CIRCULAR CYLINDERS, CROSS FLOW, REYNOLDS NUMBER, SHEAR STRESS, STRESS MEASUREMENT, BOUNDARY LAYERS,...
NASA Technical Documents
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The 8th Spacecraft Charging Technology Conference was held in Huntsville, Alabama, October 20-24, 2003. Hosted by NASA s Space Environments and Effects (SEE) Program and co-sponsored by the Air Force Research Laboratory (AFRL) and the European Space Agency (ESA), the 2003 conference saw attendance from eleven countries with over 65 oral papers and 18 poster papers. Presentation topics highlighted the latest in spacecraft charging mitigation techniques and on-orbit investigations, including:...
Topics: CIRCULAR CYLINDERS, NOISE REDUCTION, NASTRAN, ACOUSTIC RESONANCE, LOW FREQUENCIES, GRID GENERATION...
NASA Technical Documents
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AERODYNAMICS AND FLIGHT DYNAMICS OF TURBOJET AIRCRAFT
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Topics: ELECTRIC ARCS, ELECTRICAL RESISTIVITY, HIGH TEMPERATURE AIR, THERMAL CONDUCTIVITY, THERMAL PLASMAS,...
NASA Technical Documents
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This document presents the postflight trajectory for the Apollo/Saturn 5 AS-506 flight. Included is an analysis of the orbital and powered flight trajectories of the launch vehicle, the free flight trajectories of the expended S-1C and S-2 stages, and the slingshot trajectory of the S-4B/1U. Trajectory dependent parameters are provided in earth-fixed launch site, launch vehicle navigation, and geographic polar coordinate systems. The time history of the trajectory parameters for the launch...
Topics: AEROTHERMODYNAMICS, SPACECRAFT MODULES, SPACECREWS, DESIGN ANALYSIS, ENVIRONMENT EFFECTS, LUNAR...
NASA Technical Documents
by Walatka, Pamela P.; Buning, Pieter G.; Pierce, Larry; Elson, Patricia A
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PLOT3D is a computer graphics program designed to visualize the grids and solutions of computational fluid dynamics. Seventy-four functions are available. Versions are available for many systems. PLOT3D can handle multiple grids with a million or more grid points, and can produce varieties of model renderings, such as wireframe or flat shaded. Output from PLOT3D can be used in animation programs. The first part of this manual is a tutorial that takes the reader, keystroke by keystroke, through...
Topics: POWER CONDITIONING, RESOURCE ALLOCATION, VALUE ENGINEERING, SCHEDULING, SOLAR ENERGY CONVERSION,...
Proceedings from symposia of the Technology 2003 Conference and Exposition, December 7-9, 1993, Anaheim, CA, was discussed. Volume 1 features the Plenary Session and the Plenary Workshop, plus papers presented in Advanced Manufacturing, Biotechnology/Medical Technology, Environmental Technology, Materials Science, and Power and Energy.
Topics: CRACK TIPS, CRACKS, DEFECTS, EDDY CURRENTS, ELECTROMAGNETIC SHIELDING, FERROMAGNETIC MATERIALS,...
NASA Technical Documents
by Bayevskiy, R. M.; Parin, V. V
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Medical cybernetics and diagnostic problems, bionics, and cybernetic aspects of medical electronics
Topics: BIONICS, DIAGNOSIS, MEDICAL ELECTRONICS, MEDICINE, CYBERNETICS, DIAGNOSIS, MAN MACHINE SYSTEMS,...
Z-function solutions for motion and heating during atmosphere entry from equatorial orbits of rotating planets
Topics: ATMOSPHERIC ENTRY, MOTION, PLANET, REENTRY, Z FUNCTION, EQUATORIAL ORBITS, HEATING, MOTION,...
Planetary Science Decadal Survey
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Near Earth objects (NEOs) are attractive targets for spacecraft missions with the purpose of obtaining greater insight to the nature of the original bodies from which the terrestrial planets formed, without having to visit the Main Belt itself. Greater knowledge of NEOs directly sheds light on the origin and evolution of the asteroid belt, the formation of planets, and the history of the solar system. This report describes a search for NEOs that would be accessible for missions launching in...
Topics: Asteroids, NASA, Decadal, Trajectory Opportunities, Survey, Near Earth Asteroids, NEOs
NASA Technical Documents
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The results of research aimed at improving the predictability of internal ballistics performance of solid-propellant rocket motors (SRM's) including thrust imbalance between two SRM's firing in parallel are presented. Static test data from the first six Space Shuttle SRM's is analyzed using a computer program previously developed for this purpose. The program permits intentional minor design biases affecting the imbalance between any two SMR's to be removed. Results for the last four of the six...
Topics: CONTROL THEORY, ROTARY STABILITY, MAGNETIC BEARINGS, MAGNETIC CONTROL, ROTORS, VIBRATION DAMPING,...
NASA Technical Documents
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No Abstract Available
Topics: PROPULSION SYSTEM CONFIGURATIONS, SATURN S-4B STAGE, SPACECRAFT COMPONENTS, CHECKOUT, SATURN 5...
No Abstract Available
Topics: APOLLO SPACECRAFT, PROPULSION SYSTEM PERFORMANCE, SATURN 5 LAUNCH VEHICLES, LUNAR LANDING, LUNAR...
Computer programs are presented which are capable of calculating detailed aerodynamic loadings and pressure distributions acting on pitched and rolled supersonic missile configurations which utilize bodies of circular or elliptical cross sections. The applicable range of angle of attack is up to 20 deg, and the Mach number range is 1.3 to about 2.5. Effects of body and fin vortices are included in the methods, as well as arbitrary deflections of canard or fin panels.
Topics: ATMOSPHERIC CIRCULATION, RECTANGLES, FLOW DISTRIBUTION, NUMERICAL FLOW VISUALIZATION, TURBULENT...
NASA Technical Documents
by Dick, Steven J.; Strick, James E
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In the opening weeks of 1998 a news article in the British journal Nature reported that NASA was about to enter biology in a big way. A ''virtual'' Astrobiology Institute was gearing up for business, and NASA administrator Dan Goldin told his external advisory council that he would like to see spending on the new institute eventually reach 100 million per year. ''You just wait for the screaming from the physical scientists (when that happens),'' Goldin was quoted as saying. Nevertheless, by the...
Topics: CHONDRULE, COOLING, HEATING, PETROGRAPHY, NEBULAE, OLIVINE, PLAGIOCLASE, PYROXENES, METEORITIC...
NASA Technical Documents
by Engelbart, D. C.; English, W. K.; Huddart, B
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Human composition and modification of computer driven cathode ray tube display
Topics: CATHODE RAY TUBES, DISPLAY SYSTEM, COMPUTER PROGRAMS, COMPUTER TECHNIQUES, DISPLAY DEVICES, ON-LINE...
NASA Technical Documents
by Brennan, P. J.; Kroliczek, E. J
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No Abstract Available
Topics: HYDROGEN OXYGEN ENGINES, TURBOROCKET ENGINES, ORBIT TRANSFER VEHICLES, ROCKET ENGINE DESIGN,...
NASA Technical Documents
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No Abstract Available
Topics: COST ANALYSIS, GROUND OPERATIONAL SUPPORT SYSTEM, PROJECT MANAGEMENT, SPACE TRANSPORTATION SYSTEM...
The information required by a programmer using the Minimum Hamiltonian AScent Trajectory Evaluation (MASTRE) Program is provided. This document enables the programmer to either modify the program or convert the program to computers other than the VAX computer. Documentation for each subroutine or function based on providing the definitions of the variables and a source listing are included. Questions concerning the equations, techniques, or input requirements should be answered by either the...
Topics: CELESTIAL MECHANICS, LUNAR LIMB, LUNAR SHADOW, SOLAR ECLIPSES, WESTERN HEMISPHERE, EARTH ORBITS,...
Planetary Science Decadal Survey
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The Mars Sample Return (MSR) concept is a campaign of three missions: a sample acquisition/caching rover mission, a lander mission to fetch the cache and deliver it to Mars orbit via a rocket, and an orbiter mission that would capture the orbiting sample (OS) container and deliver it to Earth via an Earth Entry Vehicle (EEV). A fourth component is the Mars Returned Sample Handling (MRSH) element that would include a sample receiving facility (SRF) and a curation facility. These elements are...
Topics: Mars, NASA, Sample Return, Mission Concept Study, Decadal, Lander
Apollo optical subsystem and lunar module alignment optical telescope project - Vol. 2, part 1
Topics: CHECKOUT, TELESCOPES, CASSEGRAIN OPTICS, SERVOMECHANISMS
NASA Technical Documents
by Gorlin, S. M.; Slezinger, I. I
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Wind tunnels for measuring aerodynamic characteristics
Topics: AERODYNAMIC CHARACTERISTICS, WIND TUNNELS, WIND TUNNEL
NASA Technical Documents
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The computer programmer manual for NASTRAN is presented. The subjects discussed are: (1) NASTRAN programming fundamentals, (2) data block and table description, (3) subroutine descriptions, (4) module functional descriptions, (5) NASTRAN-operating systems interfaces, (6) modifications and additions to NASTRAN, and (7) NASTRAN support program.
Topics: CARBON COMPOUNDS, MOLECULAR WEIGHT, PERFLUORO COMPOUNDS, POLYETHER RESINS, ELASTOMERS, FLEXIBILITY,...
Planetary Science Decadal Survey
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The purpose of this study was to determine the feasibility of a Lunar Geophysical Network (LGN) mission to the Moon. It was conducted by Marshall Space Flight Center's, Robotic Lunar Lander Development Project team in partnership with the Johns Hopkins University/Applied Physics Laboratory (JHU/APL). This study was documented based on previous trades, analysis and options for concepts developed by the team over the last 18 months, with a goal of determining whether such a mission could be...
Topics: Lunar Geophysical Network, (LGN), NASA, Mission Concept Study, Decadal, Lunar, Moon
NASA Technical Documents
by HOHMANN, WALTE
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THIS WORK (ORIGINALLY PUBLISHED IN 1925) CONTRIBUTES TO RECOGNITION OF THE FEASIBILITY OF SPACE TRAVEL. TREATED ARE PROBLEMS ASSOCIATED WITH LEAVING THE EARTH, RETURN TO EARTH, FREE-SPACE FLIGHT, CIRCUM-NAVIGATION OF CELESTIAL OBJECTS, AND LANDING ON OTHER CELESTIAL OBJECTS.
Topics: DIFFUSION THEORY, REACTIVITY, DIFFUSION, SIMULATORS, SHIELDING
No Abstract Available
Topics: DESIGN ANALYSIS, REACTOR TECHNOLOGY, SPECIFICATIONS, NUCLEAR ENERGY, NUCLEAR MODELS, SNAP 8,...
NASA Technical Documents
by Perkins, P. J.; Holdeman, J. D.; Nastrom, G. D
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Measurements of zone concentrations both outside and in the cabin of an airline operated Boeing 747SP and Boeing 747-100 airliner are presented. Plotted data and the corresponding tables of observations taken at altitude between the departure and destination airports of each flight are arranged chronologically for the two aircraft. Data were taken at five or ten minute intervals by automated instrumentation used in the NACA Global Atmospheric Sampling Program.
Topics: AIRFOIL PROFILES, TRAILING EDGES, HYDRODYNAMICS, JOUKOWSKI TRANSFORMATION, MATHEMATICAL MODELS,...
NASA Technical Documents
by Langel, R. A.; Berbert, J.; Jennings, T
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The in-flight attitude and vector magnetometer data bias recovery techniques and results are described. The attitude bias recoveries are based on comparisons with a magnetic field model and are thought to be accurate to 20 arcsec. The vector magnetometer bias recoveries are based on comparisons with the scalar magnetometer data and are thought to be accurate to 3 nT or better. The MAGSAT position accuracy goals of 60 m radially and 300 m horizontally were achieved for all but the last 3 weeks...
Topics: ABRASION, BLADES (CUTTERS), COST EFFECTIVENESS, COST ESTIMATES, EROSION, PHOTOVOLTAIC CELLS,...
NASA Technical Documents
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Following the return to earth on December 2, 1988, of Orbiter OV-104, Atlantis, it was observed that there was substantial Thermal Protection System (TPS) tile damage present on the lower right fuselage and wing. Damage sites were more numerous than on previous flights and conversely, there was almost no damage present on Atlantis' left side. A review team investigated the cause beginning with a detailed inspection of the Atlantis TPS damage, and a review of related inspection reports to...
Topics: EARTH RESOURCES, HYDROLOGY, IMAGE PROCESSING, MINERAL EXPLORATION, OCEANOGRAPHY, PHOTOMAPPING,...
Calculation of second-order supersonic flow past bodies of revolution at zero angle of attack is described in detail, and reduced to routine computation. Use of an approximate tangency condition is shown to increase the accuracy for bodies with corners. Tables of basic functions and standard computing forms are presented. The procedure is summarized so that one can apply it without necessarily understanding the details of the theory. A sample calculation is given, and several examples are...
No Abstract Available
Topics: ANGLES (GEOMETRY), TRACKING (POSITION), AXES OF ROTATION, AZIMUTH, CELESTIAL REFERENCE SYSTEMS,...
NASA Technical Documents
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Descriptive and analytical information useful for the optimal design, specification, and performance evaluation of deep space telecommunications systems is presented. Telemetry, tracking, and command systems, receiver design, spacecraft antennas, frequency selection, interference, and modulation techniques are addressed.
Topics: ELECTRIC POTENTIAL, FLAT PLATES, PHOTOVOLTAIC CELLS, POWER CONDITIONING, CLIMATE, COMPUTERIZED...
NASA Technical Documents
by Walter, Neil A.; Scialdone, John J
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Outgassing data, derived from tests at 398 K (125 C) for 24 hours in a vacuum as per ASTM E 595-84, have been compiled for numerous materials for spacecraft use. The data presented are the total mass loss (TML) and the collected volatile condensable materials (CVCM). The various materials are compiled by likely usage and alphabetically.
Topics: AMINO ACIDS, VEGETATION GROWTH, POTATOES, SUBSTITUTES, PROTEINS, CALMODULIN
Planetary Science Decadal Survey
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The Enceladus Orbiter (EO) mission would explore Saturn's moon Enceladus, investigating the following in order of priority: -The nature of Enceladus's cryovolcanic activity -The internal structure and chemistry of Enceladus -The geology of Enceladus -The interaction of Enceladus with the Saturn system -The surfaces and interiors of Saturn's moons Rhea, Dione and Tethys -Preparation for potential future landing on Enceladus
Topics: Enceladus, NASA, MIssion Concept Study, Decadal
NASA Technical Documents
by Arbit, H. A.; Clapp, S. D.; Nagai, C. K
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Feasibility of lithium-fluorine-hydrogen propellant combination
Topics: COMETS, METEOROIDS, COSMOLOGY, DISRUPTING, SOLAR SYSTEM
NASA Technical Documents
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Volume 2 contains data resulting from surveys of 61 military and civilian populations of both sexes from the U.S., Europe, and Asia. Some 295 measured variables are defined and illustrated.
Topics: ANTHROPOMETRY, SIZE DETERMINATION, SPACECRAFT DESIGN, SPACECRAFT ENVIRONMENTS, BODY SIZE (BIOLOGY),...
NASA Technical Documents
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In order to examine the state of technology of all areas of magnetic suspension and to review recent developments in sensors, controls, superconducting magnet technology, and design/implementation practices, the Third International Symposium on Magnetic Suspension Technology was held at the Holiday Inn Capital Plaza in Tallahassee, Florida on 13-15 Dec. 1995. The symposium included 19 sessions in which a total of 55 papers were presented. The technical sessions covered the areas of bearings,...
Topics: NUCLEAR FUEL ELEMENTS, TECHNOLOGY UTILIZATION, MICROGRAVITY, NUCLEAR FUELS, FUEL CELLS, INTERNAL...
NASA Technical Documents
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Planning, development, design, manufacture, and testing for Mariner Mars 1969 project - Vol. 1
Topics: DEEP SPACE INSTRUMENTATION FACILITY, DEEP SPACE NETWORK, INTERPLANETARY SPACECRAFT, MARS 71...
NASA Technical Documents
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No Abstract Available
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Topics: ARTIFICIAL SATELLITES, GRAVITATIONAL FIELDS, PLANETARY ROTATION, SATELLITE PERTURBATION, ORBIT...
This is the Performance Verification Report, METSAT (S/N 109) AMSU-A1 Receiver Assemblies, P/N 1356429-1 S/N F06 and P/N 1356409 S/N F06, for the Integrated Advanced Microwave Sounding Unit-A (AMSU-A).
Topics: BISTATIC REFLECTIVITY, GROUND WIND, RADIOSONDES, WIND MEASUREMENT, WIND VELOCITY, WIND DIRECTION,...
NASA Technical Documents
by MOROZ, V. I
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HANDBOOK ON PLANETARY PHYSICS
Topics: MARINER SPACE PROBES, PYROTECHNICS, SHOCK MEASURING INSTRUMENTS, VENUS PROBES, MARINER SPACECRAFT,...
Microbiological and cytological data from Vostok type spacecraft
Topics: BACTERIA, CULTURE TECHNIQUES, CYTOLOGY, MICROBIOLOGY, VOSTOK SPACECRAFT, CYTOLOGY, MICROBIOLOGY,...
NASA Technical Documents
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Proceedings of conference on animal orientation and navigation capabilities
Topics: EARTH PLANETARY STRUCTURE, THERMAL CONDUCTIVITY, U.S.S.R., RADIOACTIVE ISOTOPES, SEDIMENTARY ROCKS,...
NASA Technical Documents
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Astrophysical models for meteoroid formation and stellar and planetary evolutions are developed from simulation composition studies.
Topics: AEROSPACE SCIENCES, LUNAR EVOLUTION, LUNAR EXPLORATION, RESEARCH FACILITIES, RESEARCH MANAGEMENT,...