Meteoroid impacts on the Gemini windows
Meteoroid impacts on Gemini spacecraft windows, calculating flux-mass relation
Flaherty, R. E.↗
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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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A new statistical method of estimating surface radiances from corresponding satellite window- channel radiances
Stepwise linear regressions method for estimating black body surface radiances from model atmospheres and corresponding simulated Nimbus 2 window-channel radiances
Martin, F. L.↗
Inexpensive anti-fog coating for windows
Coating applications include anti-fog protection for deep-sea diving equipment, fire protection helmets, and windows of vehicles used in hazardous environments. Basic coating composition includes liquid detergent, deionized water, and oxygen compatible fire-resistant oil. Composition prevents visor fogging under maximum metabolic load for 5 hours and longer.
Carmin, D. L., Jr.↗
Method of forming thin window drifted silicon charged particle detector Patent
Method of forming thin window drifted silicon charged particle detector
Fessler, T. E.↗
Apollo 14 /AS-509/ operational trajectory for 31 January 1971, launch window
Predicted launch vehicle operational trajectory and related data for Apollo 14 launch window
Bell, D. C.↗
Transmission of sonic boom pressure through a window pane
Transmission of sonic boom pressure through glass window panes
Benveniste, J. E.↗
IMP-1 launch window analysis
IMP-1 launch window and secondary injection into eccentric orbit
Kaufman, B.↗
The transmission of sonic boom signals into rooms through open windows. Part 1 - the steady state solution
Pressure field steady state calculations for sonic boom signal transmission into rooms through open windows
Vaidya, P. G.↗
Effect of low thrust and earth oblateness orbit perturbations on the determination of the launch window for the SERT 2 mission
Procedures for determining launch window for SERT 2 mission and effect of low thrust and earth oblateness orbit perturbations
Cake, J. E.↗
Broadband microwave waveguide window Patent
Broadband microwave waveguide window to compensate dielectric material filling
Mullen, D. L.↗
Apollo window deformation and ray trace analyses Technical report, Jun. 1968 - Aug. 1970
Line-of-sight deviations and ray trace analyses of Apollo side window for optical experiments
Kelley, D. M.↗
Model studies of Helmholtz resonances in rooms with windows and doorways
Numerical analysis of Helmholtz resonator system established between windows and open doors when subjected to sonic boom impulsive loads
Koopmann, G.↗
Minimum delta-V, three-impulse, non-coplanar transfer from a circular parking orbit onto an asymptotic velocity vector for small declination angles - An approach to the trans-Mars launch window problem
Trans-Mars launch window problem, discussing minimum delta-V three-impulse noncoplanar transfer from circular parking orbit onto asymptotic velocity vector
Bean, W. C.↗
Light scatter from contaminated spacecraft windows
Spacecraft windows optical degradation from contamination with condensed particles, presenting light scatter measurement results
Heinisch, R. P.↗
Model studies of Helmholtz resonances in rooms with windows and doorways
Room with windows and open doors under sonic boom, determining cavity resonance model for impulsive loading conditions
Koopmann, G.↗
Helium window for shock-tube monochromators
Technique for coupling vacuum ultraviolet monochromator to shock tube to avoid loss of high energy ultraviolet light during quantitative measurements is described. System consists of helium gas window pumping through small aperture in entrance pupil of monochromator. Diagram of equipment and principles of operation are presented.
Thomas, G. M.↗
Launch window analysis in a new perspective with examples of departures from Earth to Mars
Earth-departure windows are investigated for two round trip stopover missions to Mars. These are the 1981 inbound Venus swingby mission and the 1986 direct minimum-energy mission. The secular effects of planetary oblateness are used to predict the motion of the parking orbit. A procedure is developed for matching the motion of the parking orbit and the escape asymptote. Earth-departure velocity penalties, caused by orbital plane misalinement, are reduced by synchronizing the motion of the parking orbit and the escape trajectory.
Thibodeau, J. R., III↗
Thermal performance and radio-frequency transmissivity of candidate ablation materials for S-band antenna window application on manned spacecraft
A test program was conducted in the MSC 1.5 MW arc-heated facility to evaluate the thermal performance of ablation materials having potential application as radio frequency windows. These tests were conducted for the improvement of omnidirectional antenna operating characteristics during atmospheric reentry. Since a full scale model of the Apollo command service module was available for antenna tests, this mockup was used as a basic for the tests. Test models were subjected to heating conditions simulating the nominal lunar return trajectory (AS-501) and the design trajectories, high heat load and high heating rate. RF measurements were made before and after the arc jet tests to measure attenuation effects due to the thermal degradation of the materials under consideration. The test program demonstrated that additional development is required in materials technology to achieve an ablative system with both good RF transmission characteristics and thermal-structural integrity.
Tillian, D. J.↗