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Groundbased investigation of asteroid 9969 Braille, target of the spacecraft mission Deep Space 1

机译:小行星9969 Braille的地面基础研究,这是航天器任务“深空1”的目标

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摘要

Asteroid 9969 Braille (1992 KD) was encountered on July 29, 1999 by the Deep Space 1 mission, the first of NASA's New Millennium Program, launched on October 24 1998. The data obtained by the space mission seem to indicate a composition of the object similar to that of Vesta. To complete the information obtained in the infrared region by the Deep Space 1 mission we have performed a visible spectroscopic and photometric investigation of the asteroid respectively with the 1.5 m telescope and the NTT of ESO, La Silla. The spectrum was obtained in the spectral range 4500-8200 Å and, for the photometry, BVRI filters were used. In this paper we report the results of the analysis of the data obtained indicating that, on the basis of our visible data, the composition of the asteroid may range from V-type to Q-type, but we observe also a strong similarity to the H-type ordinary chondrites. Based on observations carried out at the European Southern Observatory (ESO) of La Silla, Chile, programs N.62S-0173 and N.62S-0305A.
机译:小行星9969 Braille(1992 KD)于1999年7月29日由美国国家航空航天局(NASA)于1998年10月24日发射的首个新千年计划“深空1号”(Deep Space 1)任务遇到。与Vesta类似。为了完成“深空1号”任务在红外区域获得的信息,我们分别使用1.5 m望远镜和ESO的NTT,La Silla对小行星进行了可见光谱和光度学研究。光谱在光谱范围4500-8200Å中获得,对于光度测定,使用BVRI滤光片。在本文中,我们报告了获得的数据的分析结果,表明根据我们的可见数据,小行星的成分可能在V型到Q型之间,但我们还观察到与小行星的强烈相似之处。 H型普通球粒陨石。根据在智利拉西拉的欧洲南部天文台(ESO)进行的观测,程序N.62S-0173和N.62S-0305A。

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