c optimize for 'star-forming region'
table draine 3 log
extinguish 24
hden 6.576 vary 
c
cosmic ray background
cmb
c
stop CO column density 18.919 vary
stop temperature off
c
set 12C13 50
iterate
c
normalize to "CO  " 650.1m
set save prefix "optimize_leiden12_sfr"
save leiden ".lei" last
save overview ".ovr" last
save dr ".dr" last
c optimize intensity -4.006 0.07
optimize lines
CO   650.1m	1.000	0.07
CO   520.1m	2.292	0.03
CO   433.4m	4.087	0.02
CO   371.5m	6.755	0.01
CO   325.1m	9.878	0.01
CO     289m	13.286	0.02
CO   260.2m	16.734	0.01
CO   236.5m	19.574	0.01
CO   216.9m	22.211	0.01
CO   200.2m	23.935	0.01
^13C   544m	0.644	0.10
^13C 453.4m	1.075	0.06
^13C 388.6m	1.694	0.04
^13C 340.1m	2.312	0.03
^13C 302.3m	3.002	0.08
^13C 272.1m	3.103	0.08
^13C 247.4m	2.799	0.09
^13C 226.8m	2.252	0.11
^13C 209.4m	1.765	0.14
end of lines