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T1  - Laboratory spectroscopy of meteorite samples at UV-Vis-NIR wavelengths : Analysis and discrimination by principal components analysis 
SN  -  /  
UR  - http://hdl.handle.net/10138/232529 
T3  -  
A1  - Penttilä, Antti; Martikainen, Julia; Gritsevich, Maria; Muinonen, Karri 
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PB  -  
Y1  - 2018 
LA  - eng 
AB  - Meteorite samples are measured with the University of Helsinki integrating-sphere UV-vis-NIR spectrometer. The resulting spectra of 30 meteorites are compared with selected spectra from the NASA Planetary Data System meteorite spectra database. The spectral measurements are transformed with the principal component analysis, and it is shown that different meteorite types can be distinguished from the transformed data. The motivation is to improve the link between asteroid spectral observations an... 
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IS  -  
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KW  - 115 Astronomy, Space science; 114 Physical sciences; Meteorites; spectroscopy; Principal component analysis; REFLECTANCE SPECTRA; SURFACE 
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