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Stefano Mottola Gabriele Arnold Hans-Georg Grothues Ralf Jaumann Harald Michaelis Gerhard Neukum Jean-Pierre Bibring 《Space Science Reviews》2007,128(1-4):241-255
ROLIS (Rosetta Lander Imaging System) is one of the two imaging systems carried by Rosetta’s Lander Philae, successfully launched
to comet 67P/ Churyumov-Gerasimenko in March 2004. Consisting of a highly-miniaturized CCD camera, ROLIS will operate as a descent imager, acquiring imagery
of the landing site with increasing spatial resolution. After touchdown ROLIS will focus at an object distance of 30 cm, taking
pictures of the comet’s surface below the Lander. Multispectral imaging is achieved through an illumination device consisting
of four arrays of monochromatic light emitting diodes working in the 470, 530, 640 and 870 nm spectral bands. The drill sample
sites, as well as the Alpha X-Ray Spectrometer (APXS) target locations will be imaged to provide context for the measurements
performed by the in situ analyzers. After the drilling operation, the borehole will be inspected to study its morphology and to search for stratification.
Taking advantage of the Lander’s rotation capability, stereo image pairs will be acquired, which will facilitate the mapping
and identification of surface structures. 相似文献
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