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Kvant-1 ((ロシア語:Квант-1); English: Quantum-I/1) (37KE) was the first module to be attached in 1987 to the Mir Core Module, which formed the core of the Soviet space station ''Mir''. It remained attached to ''Mir'' until the entire space station was deorbited in 2001.〔(【引用サイトリンク】url=http://www.russianspaceweb.com/tks.html )〕 The Kvant-1 module contained scientific instruments for astrophysical observations and materials science experiments. It was used to conduct research into the physics of active galaxies, quasars and neutron stars and it was uniquely positioned for studies of the Supernova SN 1987A. Furthermore, it supported biotechnology experiments in anti-viral preparations and fractions. Some additions to Kvant-1 during its lifetime were solar arrays and the ''Sofora'' and ''Rapana'' girders. The Kvant-1 module was based on the TKS spacecraft and was the first, experimental version of a planned series of '37K' type modules. The 37K modules featured a jettisonable TKS-E type propulsion module, also called the Functional Service Module (FSM). The control system of Kvant-1 had been developed by NPO "Electropribor" (Kharkiv, Ukraine).〔(Krivonosov, Khartron: Computers for rocket guidance systems )〕 After previous engineering tests with the Salyut 6 and Salyut 7 space stations (and temporarily attached TKS derived space station modules like Kosmos 1267, Kosmos 1443 and Kosmos 1686) it became the first space station module to be attached semipermanently to the first modular space station in the history of space flight.〔 Kvant-1 was originally planned to be docked to the Salyut 7 space station, the plans however evolved to launch to ''Mir'', initially considered on board the Soviet ''Buran'' space shuttle, which finally changed to a launch to ''Mir'' by the Proton-K rocket. ==Background== The Kvant spacecraft represented the first use of a new kind of Soviet space station module, designated 37K. An order authorising the beginning of development was issued on 17 September 1979. The basic 37K design consisted of a 4.2 m diameter pressurised cylinder with a docking port at the forward end. It was not equipped with its own propulsion system. The original authorisation was for a total of eight 37K's of various configurations: *One experimental 37KE (using a surplus FGB module of the cancelled Chelomei TKS manned ferry as a tug) which would be docked to the front port of the Salyut 7 space station. *Four 37KS modules for Mir. These would be delivered and docked to the station by a new lighter weight FGO tug. *Three 37KB modules. These would be carried in the payload bay of the Buran space shuttle. They could remain attached to the bay or (modified to the 37KBI configuration) be docked to the Mir or Mir-2 space stations using the Buran manipulator arm. The 37KE was designated Kvant and was equipped with an astrophysics payload. It also used the Salyut-5B digital flight control computer and Gyrodyne flywheel orientation system developed for Almaz. As the module neared completion Salyut 7 experienced numerous technical problems and Kvant was retargeted for a docking with Mir. But at that time Mir was planned to be in a 65 degree orbit, and Kvant was 800 kg too heavy for the Proton launch vehicle to place in such an orbit. In January 1985 Mir was changed to a 51.6 degree orbit, which solved one problem. But now it was planned that Kvant would dock with the rear port of Mir, requiring the addition of lines to conduct rocket propellant from Progress tanker spacecraft to Mir's storage tanks. This increased weight again, forcing the FGB to have its propellant load reduced to 60% in the high pressure tanks and empty low pressure tanks. With a reported total launch weight varying between ,〔〔 Kvant-1 was supposedly at that time the heaviest payload lifted by Proton, requiring special custom modifications to its launch vehicle.〔(【引用サイトリンク】url=http://www.astronautix.com/craft/kvant.htm )〕 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「Kvant-1」の詳細全文を読む スポンサード リンク
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