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Orbital Express was a space mission managed by the United States Defense Advanced Research Projects Agency (DARPA) and a team led by engineers at NASA's Marshall Space Flight Center (MSFC). The Orbital Express program was aimed at developing "a safe and cost-effective approach to autonomously service satellites in orbit."〔 (【引用サイトリンク】 Boeing Integrated Defense Systems - Orbital Express )〕 The system consisted of two spacecraft: the ASTRO servicing satellite, and a prototype modular next-generation serviceable satellite; NEXTSat. The mission launched from Cape Canaveral Air Force Station on March 8, 2007, aboard an Atlas V expendable launch vehicle.〔(【引用サイトリンク】 Look Ma! No (Human) Hands! )〕〔 (【引用サイトリンク】 Orbital Express Launches Successfully )〕 The launch was part of the United States Air Force Space Test Program STP-1 mission.〔 (【引用サイトリンク】 Orbital Express Space Operations Architecture )〕 == Program management and contractors == The Orbital Express program was managed by the Tactical Technology Office (TTO), one of the six technical offices in DARPA.〔 (【引用サイトリンク】 TTO Overview )〕 TTO programs included both "Aerospace Systems" such as Orbital Express, and "Tactical Multipliers" such as the "Magneto Hydrodynamic Explosive Munition (MAHEM) program".〔 (【引用サイトリンク】 TTO Programs )〕 ASTRO was developed by Boeing Integrated Defense Systems, which included the Orbital Express Demonstration Manipulator System (OEDMS) developed by MacDonald, Dettwiler and Associates,〔(【引用サイトリンク】 Autonomous Robotic Operations for On-Orbit Satellite Servicing )〕 and NEXTSat was developed by Ball Aerospace & Technologies Corp. NASA's involvement was through the Automated Systems and Automated Rendezvous and Docking Division of the Engineering Directorate at MSFC. The MSFC Engineering Directorate also managed the Advanced Video Guidance System (AVGS) for Orbital Express project.〔 (【引用サイトリンク】 Engineering Directorate Projects & Customers )〕 The refueling mechanism was designed, developed and produced by VACCO Industries. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Orbital Express」の詳細全文を読む スポンサード リンク
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