http://dr5.lamost.org/v3/sas/fits/20121114/GAC121N33B1/spec-56246-GAC121N33B1_sp12-183.fits.gz
http://dr5.lamost.org/v3/sas/fits/20121114/GAC121N33B1/spec-56246-GAC121N33B1_sp12-183.fits.gz
http://dr5.lamost.org/v3/sas/fits/20121114/GAC121N33B1/spec-56246-GAC121N33B1_sp12-183.fits.gz