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(385250) 2001 DH47
, also written as 2001 DH47, is a small asteroid orbiting near the of Mars (60 degrees behind Mars on its orbit).〔(Dynamics of Mars Trojans )〕
==Discovery, orbit and physical properties==
was discovered on February 1, 2001 by the Spacewatch program, observing from Steward Observatory, Kitt Peak〔 and classified as Mars-crosser by the Minor Planet Center. Its orbit is characterized by low eccentricity (0.035), moderate inclination (24.4º) and a semi-major axis of 1.52 AU.〔(MPC data on 2001 DH47 )〕 Its orbit is well determined as it is currently (March 2013) based on 45 observations with a data-arc span of 3,148 days.〔(JPL's Solar System Dynamics data on 2001 DH47 )〕 It has an absolute magnitude of 19.7 which gives a characteristic diameter of 562 m.〔
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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