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| Engineering test satellites test advanced technologies in orbit, which will be used to improve and enhance artificial satellites. |
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| Verifies the performance of parts and equipment supplied by the private sector in space by applying to actual spacecraft for low-cost, short-cycle, high-quality (CFB) satellites. The development of SERVIS 1 and 2 will result in a low-cost commercial bus. |
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| ETS-VIII is a geostationary satellite bus mounted with two of the world's largest antennas (19m x 17m), developed primarily to establish and verify technologies such as higher-traffic processing, mobile telecommunications, and high-accuracy satellite positioning, all of which are essential for space missions at the beginning of the 21st century. |
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| USERS is an on-orbit experimental spacecraft system developed by USEF under a contract with METI and NEDO. It not only allows for long-term orbital experiments on a wide variety of challenges including the production of superconducting materials in the well-established enviroment, but also is capable of autonomously landing back on Earth. |
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