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Priority to JP13021685UpriorityCriticalpatent/JPS6237600U/ja
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Star field attitude sensor study for the Pioneer Venus spacecraft(Characteristics of star field attitude sensor for installation in Pioneer Venus spacecraft)
Design criteria and state of development of the HEOS-A satellite(Highly eccentric orbit satellite/HEOS/ for solar wind, cosmic ray and magnetic field data collection, noting design and mission program)
Disturbing influence of sun on artificial venus satellite is determined from investigations of orbital motions, eccentricities and inclinations as to orbit plane of venus around sun