ASNARO(AdvancedSatellitewithNewsystemARchitectureforObservation)英文书.pdf

ASNARO (Advanced Satellite with New system ARchitecture for Observation) ASNARO is a Japanese optical high-resolution Earth imaging mission under development by the NEC Corporation and USEF (Institute for Unmanned Space Experiment Free Flyer). The project is funded by NEDO (New Energy and Industrial Technology Development Organization), a Department of METI (Ministry of Economy, Trade and Industry) of the Government of Japan. The ASNARO project was initiated by USEF in 2008. The overall objective is to develop a next-generation high-performance minisatellite bus system based on open architecture techniques and manufacturing methodologies to drastically reduce the cost and the development period with adoption of up-to-date electronics technologies. The observation requirements call for the provision of high-resolution imagery \[Pan of 0.5 m, and MS of 2 m GSD (Ground Sample Distance) on a swath of 10 km\]. This implies also the development of a high-performance imager and to demonstrate new 1) 2) 3) 4) 5) technologies in space. Figure 1: On-orbit illustration of the ASNARO spacecraft (image credit: NEC) Spacecraft: The new NEC standard minisatellite bus system under development, the result of a joint study by JAXA/ISAS and NEC, is highly adaptive for various missions. As the payload interfaces are standardized - including mechanical, thermal, electrical and RF interfaces - the bus system can be applied not only for optical observation mission but also for other payloads like the SAR, hyperspectral, and infrared instrument applications. Figure 2: Illustration of the standard bus portion of the spacecraft (image credit: USEF, NEC) The minisatellite bus system is comprised of subsystems which can be arranged in building-block style with the Spa