http://dr5.lamost.org/v3/sas/fits/20140129/GAC117N27B1/spec-56687-GAC117N27B1_sp03-077.fits.gz
http://dr5.lamost.org/v3/sas/fits/20140129/GAC117N27B1/spec-56687-GAC117N27B1_sp03-077.fits.gz
http://dr5.lamost.org/v3/sas/fits/20140129/GAC117N27B1/spec-56687-GAC117N27B1_sp03-077.fits.gz