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Found 4 entries in the Bibliography.
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Solar Radiation Disturbance Torque Reduction for the Parker Solar Probe Observatory
This paper examines the methodology used for reducing solar pressure disturbance torques for the Parker Solar Probe (PSP) Observatory by minimizing the offset between spacecraft s Center of Gravity (CG) and Center of Pressure (CP). The force due to solar radiation pressures encountered by the PSP spacecraft, particularly at the 9.86 solar-radii (Rs) closest approach point in the orbit, are of a sufficient magnitude to produce significant disturbance torques. Inside of 0.25 AU, the Observatory is required to keep its Thermal ...
Ruiz, Felipe; Kelly, Daniel; Napolillo, David;
Published by: IEEE Aerospace Conference Proceedings Published on:
Ballast (railroad track); Flight control systems; Observatories; Optical properties; Orbits; Probes; Propellants; Solar radiation; Spacecraft; Torque; Well testing; Parker Engineering
Experimental study of pyrolytic boron nitride at high temperature with and without proton and VUV irradiations
In the frame of future exploration missions such as Solar Probe Plus (NASA) and PHOIBOS (ESA), research was carried out to study pyrolytic BN material envisaged as coating for their heat shields. The physico-chemical behavior of CVD pBN at very high temperature with or without hydrogen ions and VUV (Vacuum Ultra-Violet) irradiations was studied in high vacuum together with the in situ measurement of the thermal radiative properties conditioning the thermal equilibrium of the heat shield. Experimental results obtained on m ...
Balat-Pichelin, M.; Eck, J.; Heurtault, S.; enat, H.;
Published by: Applied Surface Science Published on: 09/2014
YEAR: 2014   DOI: 10.1016/j.apsusc.2014.07.007
Boron nitride; Heat treatment; Mechanical properties; Optical properties; parker solar probe; Proton irradiation; Solar Probe Plus
Thermal design for high-temperature high-irradiance testing of space solar panel components
Emcore has been performing High Intensity High Temperature (HIHT) tests on covered, interconnected cell (CIC) assemblies. End-of-life performance of spacecraft solar panels depends to a great extent on changes in the optical properties of the CICs coverglass adhesive during the mission. An important change in silicone coverglass adhesives is observed as degradation of short wavelength transmission, often called darkening or yellowing . This is understood to be driven by exposure to high intensity UV and by exposure to el ...
Blumenfeld, Philip; Boca, Andreea; Sharps, Paul; Russell, Dennis; Ogawa, Hiroyuki; Toyota, Hiroyuki;
Published by: Conference Record of the IEEE Photovoltaic Specialists Conference Published on:
Adhesives; Heat radiation; Optical properties; Predictive analytics; Silicones; Solar energy; Temperature control; Test facilities; Parker Engineering
Ceramic coatings for the solar probe plus mission
A study was conducted to develop the coatings needed to protect the Solar Probe Plus Thermal Protection System (TPS) from the harsh environment. The TPS encountered harsh environment during its mission close to the sun, facing significant solar fluxes. The first part of the study addressed the way a coating s microstructure affected its optical properties and the way coatings were designed to maintain the right microstructure over temperature. The study was led by a researcher from the Advanced Technology Laboratory of the W ...
Mehoke, D.; Congdon, E.; , Drewry; Eddins, C.; Deacon, R.; Wolf, T.; Hahn, D.; King, D.; Nagle, D.; Buchta, M.; Zhang, D.; Hemker, K.; Spicer, J.; Jones, J.; Ryan, S.; Schlichter, G.;
Published by: Johns Hopkins APL Technical Digest (Applied Physics Laboratory) Published on:
Grain growth; Microstructure; Optical properties; Probes; Parker Engineering