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The Technological and Educational Nanosatellite, or TechEdSat, is a series of CubeSats built by San Jose State University students in partnership with Ames Research Center and ÅAC Microtec. The first TechEdSat had a mission to evaluate Space Plug-and-play Avionics (SPA) from ÅAC Microtec, and was launched on an H-IIB carrier rocket from the Tanegashima Space Center on 21 July 2012 to the International Space Station, where it was deployed via the JAXA J-SSOD deployer. on 4 Oct 2012.〔(【引用サイトリンク】 title=CubeSat Orbital Elements )〕 It reentered to atmosphere on 5 May 2013.〔(TechEdSat Twitter )〕 TechEdSat-2 was planned as a 6U CubeSat, a collaboration between ÅAC Microtec in Sweden and NASA Ames.〔Gunter's Space Page, (TechEdSat 2 (TES 2) ) (accessed 12 Sept 2014)〕 TechEdSat-3p was a 3U CubeSat that was launched to the International Space Station on November 20, 2013 on a HTV-4 from Tanegashima, Japan and subsequently deployed into orbit using the JEM-Small Satellite Orbital Deployer. It tested an exo-brake to demonstrate a passive deorbiting.〔(TechEdSat 3 ) (accessed 12 Sept 2014)〕 TechEdSat-4 is a 3U CubeSat mission developed, integrated, and tested at NASA Ames in partnership with student interns from San Jose State University in California and the University of Idaho. The objective of the TechEdSat-4 mission is to demonstrate new technologies including satellite-to-satellite communications and an upgraded exo-brake device to demonstrate a passive deorbiting. TechEdSat-4 was launched as a secondary cargo payload on the Cygnus CRS Orb-2 ISS resupply mission. The launch vehicle was the Orbital Sciences Corporation Antares-120, launching from the Mid-Atlantic Regional Spaceport on Wallops Island, VA on July 13, 2014.〔(TechEdSat-4 (Technological and Educational Nanosatellite-4) ) (accessed 12 Sept 2014)〕 TechEdSat-4 was deployed from the International Space Station via the NanoRacks CubeSat Deployer on March 4, 2015.〔http://www.nasa.gov/mission_pages/station/research/experiments/1815.html〕〔https://directory.eoportal.org/web/eoportal/satellite-missions/content/-/article/techedsat-4〕 ==TechEdSat== The first TechEdSat (later renamed "TechEdSat-1") was a 1-U cubesat to evaluate Space Plug-and-play Avionics (SPA) designed in Sweden by ÅAC Microtec. It was also originally intended to perform a communications experiment utilizing the Iridium and Orbcomm satellite phone network,〔 although this function was disabled before launch.〔AmSat, ("TechEdSat to Use Satphone" ): The plan to transmit from space using frequencies allocated to Iridium and Orbcomm SatPhone ground stations has been canceled. A statement from the team says: “We were forced to disable the Iridium modem as our FCC license did not come in time. As usual, building the satellite is the easy part.”(accessed 12 Sept 2014)〕 TechEdSat was deployed into orbit from the International Space Station on 4 Oct 2012. 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「TechEdSat」の詳細全文を読む スポンサード リンク
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