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Sapphire (satellite)
Sapphire is a Canadian space surveillance satellite which was launched in 2013. Sapphire was constructed by MacDonald, Dettwiler and Associates (MDA) based on an SSTL-150 bus produced by Surrey Satellite Technology (SSTL) and an optical payload produced by COM DEV International.
==Details==
SAPPHIRE, Canada's first military satellite, is a small spacecraft designed to monitor space debris and satellites within an orbit 3,728 to 24,855 miles (6,000 to 40,000 kilometres) above Earth. The satellite has been providing data to the United States Space Surveillance Network since January 2014.〔(【引用サイトリンク】title=Canada's DND Sapphire satellite completes commissioning )〕 The satellite has a mass of , and carries a Three Mirror Anastigmat to track artificial objects in medium Earth orbit to geosynchronous Earth orbit. ISRO's Ball Lock separation system IBL-298 was used for separating the satellite.〔(【引用サイトリンク】title=PSLV-C20/SARAL Mission )〕
The optical system is based on the design of the Space-Based Visible (SBV) sensor. This telescope was developed for the Midcourse Space Experiment. The CCD used is a CCD47-20bi CCD sensor.〔(【引用サイトリンク】title=Sapphire: A Small Satellite System for the Surveillance of Space )〕
Following completion of its operational testing and certification, Sapphire began its five year operational mission November 13, 2013.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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