http://dr5.lamost.org/v3/sas/fits/20160328/GAC112N47B2/spec-57476-GAC112N47B2_sp15-154.fits.gz
http://dr5.lamost.org/v3/sas/fits/20160328/GAC112N47B2/spec-57476-GAC112N47B2_sp15-154.fits.gz
http://dr5.lamost.org/v3/sas/fits/20160328/GAC112N47B2/spec-57476-GAC112N47B2_sp15-154.fits.gz
http://dr5.lamost.org/v3/sas/fits/20160328/GAC112N47B2/spec-57476-GAC112N47B2_sp15-154.fits.gz