Analysis and evaluation of a forward viewing scanning radar scatterometer system
Forward scanning radar scatterometer for analysis of terrain cross sections
SEARCH · Search NASA
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
Forward scanning radar scatterometer for analysis of terrain cross sections
Cloud cover consequence on earth photographing space missions simulated by Monte Carlo method using worldwide statistics
Correction factors required for estimating influence of pupil area reduction on retinal illumination at oblique angles
Self similarity concept relevance to atmospheric turbulence demonstrated from ground and airborne observational data
Cloud cover effect on earth photographing space missions by Monte Carlo computer simulation, using worldwide cloud statistics
Martian atmosphere modeling for obtaining Viking lander spacecraft design margins by Monte Carlo method
Project authority relationship concerning manager authority and influence in five organization models
Nonlinear structural analysis of Mariner spacecraft solar panel, using damper test characteristics
Second order perturbation solution to modified optimal low thrust escape problem
Biochemical molecular model for metabolic energy transition from mammalian organs to central nervous system
Thermal radiation from hot water vapor and carbon dioxide imbedded in cool atmosphere, using extended molecular band models
Latent heat convective transport from lower to tropical upper troposphere, noting periodic energy fluctuations from time lapse synchronous satellite cloud photographs
Sea surface slope distribution and wind velocity determination by sun glitter photography from synchronous satellite
Apollo and Luna data related to lunar origin, evolution and processes, discussing mare basalts, interior composition, regolith, breccias, chronology, surface properties, etc
A nonlinear structural analysis, employing the nonlinear damper characteristics obtained from a damper test, was successfully performed on the Mariner spacecraft's solar-panel system, and the result was compared with results from a system-level spacecraft test in which some solar-panel tip dampers bottomed at a certain frequency. The analysis showed that the damper bottoming was attributable to a jump phenomenon that can result when a damper's response is not single-valued at some frequency.
The regions of naturally occurring, geomagnetically trapped radiation are briefly reviewed in terms of physical parameters such as; particle types, fluxes, spectrums, and spatial distributions. The major emphasis is placed upon a description of this environment in terms of the radiobiologically relevant parameters of absorbed dose and dose-rate and a discussion of the radiological implications in terms of the possible impact on space vehicle design and mission planning.
Observations of the quiet time ring current intensity and distribution in the magnetosphere by OGO-3 and OGO-5 are given. The differences in quiet time ring currents and ring currents observed during magnetic storms are discussed.
Summary of the 1969 Mariner mission, with emphasis on the planetary encounter and with discussion of the various scientific experiments conducted. Attention is also given to the results as they have been analyzed to date in terms of what they can tell about the atmosphere, surface, and other aspects of Mars. The mission concentrated on obtaining information that would set the basis for experiments on future missions, particularly those relevant to the search for extraterrestrial life. Details of the experimental apparatus are given.