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File:PIA16221 Mars Hand Lens Imager Nested Close-Ups of Rock Jake Matijevic.jpg

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原始文件 (2,700 × 1,950像素,文件大小:2.14 MB,MIME类型:image/jpeg


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English: This image combines photographs taken by the Mars Hand Lens Imager (MAHLI) at three different distances from the first Martian rock that NASA's Curiosity rover touched with its arm. The three exposures were taken during the 47th Martian day, or sol, of Curiosity's work on Mars (Sept. 23, 2012). The team has named the target rock "Jake Matijevic." The scale bar is 4 centimeters (1.6 inches).

MAHLI imaged Jake Matijevic from distances of about 10 inches, or 25 centimeters (context image); about 2 inches, or 5 centimeters (larger white box); and about 1 inch, or 2.5 centimeters (smaller white box). The series nested into this one image takes advantage of MAHLI's adjustable focus.

MAHLI reveals that the target rock has a relatively smooth, gray surface with some glinty facets reflecting sunlight and reddish dust collecting in recesses in the rock.

Jake Matijevic is a dark, apparently uniform rock that was selected as a desirable target because it allowed the science team to compare results of the Alpha Particle X-Ray Spectrometer (APXS) instrument and the Chemistry and Camera (ChemCam) instrument, both of which provide information about the chemical elements in a target. APXS, like MAHLI, is on the turret at the end of Curiosity's robotic arm. It is placed in contact with a rock to take a reading. ChemCam shoots laser pulses at a target from the top of the rover's mast.

Jake Matijevic was also the first rock target for MAHLI, which was deployed to document the APXS and ChemCam analysis areas.

JPL manages the Mars Science Laboratory/Curiosity for NASA's Science Mission Directorate in Washington. The rover was designed, developed and assembled at JPL, a division of the California Institute of Technology in Pasadena.

For more about NASA's Curiosity mission, visit: http://www.jpl.nasa.gov/msl, http://www.nasa.gov/mars, and http://marsprogram.jpl.nasa.gov/msl.
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来源 PIA16221: Mars Hand Lens Imager Nested Close-Ups of Rock 'Jake Matijevic'
作者 NASA/JPL-Caltech/MSSS
本图像或视频收录于美国国家航空航天局 (NASA)喷气推进实验室(Jet Propulsion Laboratory),其照片编号是: PIA16221

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Public domain 本文件完全由NASA创作,在美国属于公有领域。根据NASA的版权方针,NASA的材料除非另有声明否则不受版权保护。(参见Template:PD-USGov/zhNASA版权方针页面JPL图片使用方针。)
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当前2012年10月5日 (五) 07:132012年10月5日 (五) 07:13版本的缩略图2,700 × 1,950(2.14 MB)ComputerHotline{{Information |Description={{en|This image combines photographs taken by the Mars Hand Lens Imager (MAHLI) at three different distances from the first Martian rock that NASA's Curiosity rover touched with its arm. The three exposures were taken during ...

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