... That torque causes angular momentum to be accumulated in Reaction Wheel Assemblies (RWA) that is unloaded by firing thrusters once, or twice every 22 days in synchronism with station keeping activities. ...
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Ссылки http://www.stsci.edu/jwst/doc-archive/technical-reports/JWST-STScI-000755.pdf -- 359.6 Кб -- 05.02.2013 Похожие документы
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... This trigger fires whenever the deliver_spss field is updated in the pit_track table. ... This trigger fires when the su_status field is updated in the sunits_status table. ...
... of Star- forming Galaxies in Distant Clusters: Towards a Physical Model of Satellite Galaxy Quenching Cold Galaxies on FIRE: Modeling the Most Luminous Starbursts in the Universe with Cosmological Zoom Simulations Detecting dark matter substructure with ...
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Ссылки http://www.stsci.edu/hst/proposing/docs/exp_abstract-catalogs/Cycle22-Approved-Programs.pdf -- 152.7 Кб Похожие документы
... Everything from protective suits for fire-fighters, to medical imaging devices, to more dolphin-safe fish nets, improved solar power, UV-blocking sunglasses, and more have benefited from NASA inventions. ...
... Mars at perihelic opposition in August 2003, changed dramatically from the relatively cold and cloudy oppositions near aphelion. wentieth century interest in Mars was fired by Percival Lowell's popularization of the notion of canal-building life on Mars ...