http://dr5.lamost.org/v3/sas/fits/20141103/GAC081N30B2/spec-56965-GAC081N30B2_sp01-056.fits.gz
http://dr5.lamost.org/v3/sas/fits/20141103/GAC081N30B2/spec-56965-GAC081N30B2_sp01-056.fits.gz
http://dr5.lamost.org/v3/sas/fits/20141103/GAC081N30B2/spec-56965-GAC081N30B2_sp01-056.fits.gz