http://dr5.lamost.org/v3/sas/fits/20150318/GAC115N41B2/spec-57100-GAC115N41B2_sp13-010.fits.gz
http://dr5.lamost.org/v3/sas/fits/20150318/GAC115N41B2/spec-57100-GAC115N41B2_sp13-010.fits.gz
http://dr5.lamost.org/v3/sas/fits/20150318/GAC115N41B2/spec-57100-GAC115N41B2_sp13-010.fits.gz