The Smithsonian Astrophysical Observatory controls Chandra's science and flight operations from Cambridge, Mass.

马萨诸塞州坎布里奇（Cambridge）的史密松天体物理天文台控制着钱德拉的科研和飞行。

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That's the upshot of the orbital elements calculated on Monday by Brian G. Marsden (Smithsonian Astrophysical Observatory).

这是由Brian G . M arsden(史密松天体物理天文台)在星期一的时候根据它的轨道参数所得出的结论。

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It is on loan from the Smithsonian's Astrophysical Observatory for two years.

VOA: special.2009.10.27