http://dr5.lamost.org/v3/sas/fits/20140211/GAC071N55V2/spec-56700-GAC071N55V2_sp05-070.fits.gz
http://dr5.lamost.org/v3/sas/fits/20140211/GAC071N55V2/spec-56700-GAC071N55V2_sp05-070.fits.gz
http://dr5.lamost.org/v3/sas/fits/20140211/GAC071N55V2/spec-56700-GAC071N55V2_sp05-070.fits.gz