http://dr5.lamost.org/v3/sas/fits/20130322/HD093821N401423B01/spec-56374-HD093821N401423B01_sp15-137.fits.gz
http://dr5.lamost.org/v3/sas/fits/20130322/HD093821N401423B01/spec-56374-HD093821N401423B01_sp15-137.fits.gz