mol  mol no given the same as HITRAN:  626=21, 628=23 etc.
J   rotational quantum assignment,  minus for P-branch, no sign is R-branch 
freq.(obs)  in cm-1
freq(calc)  in cm-1
o-c  obs-calc in cm-1
str(obs)  100% of species in cm-1/mol-cm
unc%  percent uncertainty of str(obs)  if no. =1, then only one spectrum was used to find
      str(obs) so unc% is given as 0 but not real
no.  number of spectra used to measure freq(obs) and Str.(obs)
str(cal)  
(o-c)%  percent diff between obs Str and calc str
band  given with 6 digits for upper as well as lower states, sixth no denotes e or f
      1=e  2=f   if only five digits given, then line is either e or f

    other comments

    some entires have no obs freq but obs strs  means that it is a hot band where
    freqs better obtained from upper states determined elsewhere

    some entries have no obs strs but obs frq. means that strengths couldn't be determined
    accurately because data shows saturated lines but freqs could be found OK.