http://dr5.lamost.org/v3/sas/fits/20170202/GAC073N02B1/spec-57787-GAC073N02B1_sp01-220.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170202/GAC073N02B1/spec-57787-GAC073N02B1_sp01-220.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170202/GAC073N02B1/spec-57787-GAC073N02B1_sp01-220.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170202/GAC073N02B1/spec-57787-GAC073N02B1_sp01-220.fits.gz