On the outer layers of model moving atmospheres
Flux divergence in optically thin outer layers of model moving stellar atmospheres using weighting functions in energy balance equation
Fischel, D.↗
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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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TV data compression for a grand tour of the outer planets
PCM TV photographic data communication for grand tour of outer planets, emphasizing adaptive information-preserving data compression system for optimal performance
Rice, R. F.↗
Thermionic reactor ion propulsion spacecraft for unmanned outer planet exploration
Thermionic reactor electric propulsion for unmanned outer planets exploration, discussing spacecraft design, launch vehicle, weight factors, etc
Davis, J. P.↗
Satellites of the outer planets - Thermal models
Outer planet large satellite steady state thermal models, indicating interiors at temperatures above ice-ammonia eutectic
Lewis, J. S.↗
System design of an outer planet spacecraft for long-life reliability
Spacecraft system design with long life reliability for outer planet exploration missions
Bowman, R. R.↗
Onboard optical guidance instruments for outer planet spacecraft
Outer planets Grand Tour spacecraft onboard optical guidance instruments, discussing vidicon and image dissector systems designs
Stanton, R. H.↗
Challenges in developing an approach guidance instrument for the outer planets
Onboard approach guidance instrument for Grand Tour to outer planets missions reducing fuel for corrective maneuvers by estimating trajectories
Stanton, R. H.↗
The infrared investigations on the Outer Planets Grand Tour
IR experiments planning for Outer Planets Grand Tour including investigations of planetary radiation balance and atmospheric composition and satellites composition and physical properties
Farmer, C. B.↗
Grand Tour surveys of the outer solar system
Multiplanet gravity assist grand tours in outer solar system, discussing launch opportunities and mission effects on spacecraft design
Keller, J. W.↗
State-of-the-art approach to outer planet exploration
Outer planet exploration spacecraft subsystems reliability and ten year flight requirements for planet orbiting and flyby missions
Guttman, C. H.↗
The plasma experiment for the outer planet missions
Plasma ion and electron distribution functions measurement on outer planet missions
Wolfe, J. H.↗
A plasma wave instrument for the outer planets Grand Tour missions
Plasma wave instrument for measuriing AC electrical and magnetic field levels in outer planets missions
Frandsen, A. M. A.↗
Aerodynamic heating for probe vehicles entering the outer planets
Outer planets atmospheric entry vehicles atmospheric heating, discussing shock and boundary layer physical and chemical effects
Page, W. A.↗
Study of the utilization of the multi-hundred watt radioisotope thermoelectric generator for Jet Propulsion Laboratory outer planet missions
Multihundred watt radioisotope thermoelectric generator for JPL outer planet missions, discussing vacuum/xenon filled performance and response to thermal/electrical transients
Leonard, W. D.↗
A Grand Tour of the outer planets
Outer planet explorers design for Grand Tour mission, discussing launch parameters, flight paths, environmental hazards, communications, ground control, navigation and power generation
Long, J. E.↗
Flight path and mission strategies to satisfy outer planet quarantine constraints
Planetary quarantine constraint on 1977 Jupiter- Saturn-Pluto mission, determining fuel loading penalties, optimum biasing strategies and outer planet navigational characteristics
Gonzalez, C.↗
Guidance and Navigation Requirements for Unmanned Flyby and Swingby Missions to the Outer Planets: Low Thrust Missions, Phase B - Volume 3
The guidance and navigation requirements for unmanned missions to the outer planets, assuming constant, low thrust, ion propulsion are discussed. The navigational capability of the ground based Deep Space Network is compared to the improvements in navigational capability brought about by the addition of guidance and navigation related onboard sensors. Relevant onboard sensors include: (1) the optical onboard navigation sensor, (2) the attitude reference sensors, and (3) highly sensitive accelerometers. The totally ground based, and the combination ground based and onboard sensor systems are compared by means of the estimated errors in target planet ephemeris, and the spacecraft position with respect to the planet.
Source record↗
Guidance and navigation requirements for unmanned flyby and swingby missions to the outer planets. Volume 4: High thrust mission, part 2, phase C
The guidance and navigation requirements for a set of impulsive thrust missions involving one or more outer planets or comets. Specific missions considered include two Jupiter entry missions of 800 and 1200 day duration, two multiple swingby missions with the sequences Jupiter-Uranus-Neptune and Jupiter-Saturn-Pluto, and two comets rendezvous missions involving the short period comets P/Tempel 2 and P/Tuttle-Giacobini-Kresak. Results show the relative utility of onboard and Earth-based DSN navigation. The effects of parametric variations in navigation accuracy, measurement rate, and miscellaneous constraints are determined. The utility of a TV type onboard navigation sensor - sighting on planetary satellites and comets - is examined. Velocity corrections required for the nominal and parametrically varied cases are tabulated.
Source record↗