http://dr5.lamost.org/v3/sas/fits/20161215/GAC056N46B2/spec-57738-GAC056N46B2_sp07-029.fits.gz
http://dr5.lamost.org/v3/sas/fits/20161215/GAC056N46B2/spec-57738-GAC056N46B2_sp07-029.fits.gz
http://dr5.lamost.org/v3/sas/fits/20161215/GAC056N46B2/spec-57738-GAC056N46B2_sp07-029.fits.gz
http://dr5.lamost.org/v3/sas/fits/20161215/GAC056N46B2/spec-57738-GAC056N46B2_sp07-029.fits.gz