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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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Occulting-filter technique allows several types of flashing-light visibility data necessary for rendezvous and docking maneuvers, to be obtained for studying the perception of flashes at the visual threshold. The indications are that the method can be used to compare sources of radically different spectral composition.
Visual acuity and visibility of markings on ground in long duration earth orbital space flight
Visible and ultraviolet light environment as related to human performance and safety during space missions
Detecting geomorphological features over Northeast Africa by Nimbus 2 visible and infrared radiation measurements
Evaluating and calibration of some energy sources for visible and near infrared regions of electromagnetic spectra
Visible and ultraviolet reflectance and luminescence for natural limestone
Spectral emission of visible from Q switched dye lasers
Intensity of visible and UV light from beam of positive deuterium molecular ions excited by passage through thin C foil
Visible radiation scattering around Venus spherical atmosphere computed on basis of Venus 4 and Mariner 5 data
Visible and IR spectral reflectivity of Apollo lunar landing sites, attributing reflectivity differences to compositional and/or mineralogical differences
Computer program for calculating visibility intervals between earth tracking station and planetary satellite
Lunar far side communications coverage and visibility analysis for orbiting satellite relay systems using mathematical models
Laser propagation experiments between stabilized synchronous satellites and ground stations at visible and near-infrared wavelengths
Effects of descent engine throttle logic and initial altitude errors on landing site visibility
Visibility and optical tracking studies for concentric flight plan of lunar orbit rendezvous
Visibility simulation of lunar craters during LEM final approach phase for lunar landing
Reflectance of rocks and minerals to visible and ultraviolet radiation
Simulator study of flight management task performance during low visibility approach and landing using baseline category 2 flight instrumentation