http://dr5.lamost.org/v3/sas/fits/20160130/GAC093N17B2/spec-57418-GAC093N17B2_sp13-018.fits.gz
http://dr5.lamost.org/v3/sas/fits/20160130/GAC093N17B2/spec-57418-GAC093N17B2_sp13-018.fits.gz
http://dr5.lamost.org/v3/sas/fits/20160130/GAC093N17B2/spec-57418-GAC093N17B2_sp13-018.fits.gz