http://dr5.lamost.org/v3/sas/fits/20130219/GAC109N30V2/spec-56343-GAC109N30V2_sp15-134.fits.gz
http://dr5.lamost.org/v3/sas/fits/20130219/GAC109N30V2/spec-56343-GAC109N30V2_sp14-183.fits.gz