http://dr5.lamost.org/v3/sas/fits/20170414/HD174640N254456V01/spec-57858-HD174640N254456V01_sp13-090.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170414/HD174640N254456V01/spec-57858-HD174640N254456V01_sp13-090.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170414/HD174640N254456V01/spec-57858-HD174640N254456V01_sp13-090.fits.gz
http://dr5.lamost.org/v3/sas/fits/20170414/HD174640N254456V01/spec-57858-HD174640N254456V01_sp13-090.fits.gz