http://dr5.lamost.org/v3/sas/fits/20170207/HD125855N172433V02/spec-57792-HD125855N172433V02_sp16-080.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170207/HD125855N172433V02/spec-57792-HD125855N172433V02_sp16-080.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170207/HD125855N172433V02/spec-57792-HD125855N172433V02_sp16-080.fits.gz