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wget -x http://data.spitzer.caltech.edu/popular/c2d/20041027_enhanced_v1/Sz30/FITS/Sz30_V1_MIPS1_mosaic_unc.fits
wget -x http://data.spitzer.caltech.edu/popular/c2d/20041027_enhanced_v1/Sz30/FITS/Sz30_V3_MIPS2_mosaic.fits
wget -x http://data.spitzer.caltech.edu/popular/c2d/20041027_enhanced_v1/Sz30/FITS/Sz30_V3_MIPS2_mosaic_cov.fits
wget -x http://data.spitzer.caltech.edu/popular/c2d/20041027_enhanced_v1/Sz30/FITS/Sz30_V3_MIPS2_mosaic_unc.fits