http://dr5.lamost.org/v3/sas/fits/20141213/GAC116N20B2/spec-57005-GAC116N20B2_sp04-117.fits.gz
http://dr5.lamost.org/v3/sas/fits/20141213/GAC116N20B2/spec-57005-GAC116N20B2_sp04-117.fits.gz
http://dr5.lamost.org/v3/sas/fits/20141213/GAC116N20B2/spec-57005-GAC116N20B2_sp04-117.fits.gz