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Background of Space Exploration
The Navys HighAltitude Test Vehicle HATV
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Aerojet AFMTC Air Force altitude American antennas Army atmosphere Cape Canaveral Chief/Naval Research conf rpt contract contractor cosmic ray crew CSAGI Defense Dir/NRL earth satellite electronic encl engine equipment experiments Explorer ﬁeld ﬁle ﬁnal ﬁring ﬁrst ﬁve ﬂight Geophysical Hagen instrumentation International Geophysical interview John Hagen later launcher Lloyd Berkner Martin Company Mazur Medaris memo ment Milton Rosen Minitrack Minitrack stations mtg TPESP Naval Research Laboratory Navy NRL's Oﬂice optical orbit panel payload plans pounds Project Vanguard Project Vanguard Weekly proposal propulsion radiation radio Redstone rocket satellite program schedule Schlechter Science Foundation scientiﬁc scientists second stage Sept solar Soviet space speciﬁcations Sputnik Stewart Committee technical telemetering telemetry test vehicle third stage tion tracking transmitter United USNC Vanguard Launch Vehicle Vanguard vehicle Vanguard Weekly Status Viking Viking Rocket Weekly Status Rpt Wernher von Braun Whipple