http://dr5.lamost.org/v3/sas/fits/20131130/GAC056N46V2/spec-56627-GAC056N46V2_sp13-149.fits.gz
http://dr5.lamost.org/v3/sas/fits/20131130/GAC056N46V2/spec-56627-GAC056N46V2_sp13-149.fits.gz
http://dr5.lamost.org/v3/sas/fits/20131130/GAC056N46V2/spec-56627-GAC056N46V2_sp13-149.fits.gz