Ionic fraction data
Arnaud and Rothenflug(1985) - Nitrogen

LOG T   +0      +1      +2      +3      +4      +5      +6      +7     

4.0     0.00    -5.63                                                 
4.1     0.00    -2.71                                                 
4.2     -0.10   -0.68                                                 
4.3     -0.82   -0.07   -5.25                                         
4.4     -1.60   -0.01   -3.15                                         
4.5     -2.04   -0.01   -1.67                                         
4.6     -2.29   -0.08   -0.80   -4.76                                 
4.7     -2.54   -0.22   -0.41   -3.18                                 
4.8     -2.91   -0.48   -0.19   -1.95   -6.46                         
4.9     -3.37   -0.80   -0.12   -1.13   -4.33                         
5.0     -3.96   -1.23   -0.18   -0.57   -2.68   -5.14                 
5.1     -4.70   -1.79   -0.40   -0.26   -1.48   -2.81                 
5.2     -5.63   -2.54   -0.84   -0.24   -0.71   -1.11                 
5.3             -3.75   -1.76   -0.76   -0.60   -0.25                 
5.4             -5.33   -3.08   -1.72   -1.03   -0.05                 
5.5             -6.83   -4.33   -2.66   -1.50   -0.01                 
5.6                     -5.43   -3.48   -1.92   -0.01   -5.28         
5.7                     -6.39   -4.18   -2.27   0.00    -3.74         
5.8                             -4.77   -2.55   0.00    -2.50   -6.58
5.9                             -5.23   -2.73   -0.01   -1.51   -4.40
6.0                             -5.60   -2.85   +0.08   -0.79   -2.69
6.1                             -5.99   -3.02   -0.25   -0.39   -1.48
6.2                             -6.49   -3.30   -0.55   -0.28   -0.71
6.3                                     -3.76   -1.01   -0.41   -0.29
6.4                                     -4.33   -1.56   -0.70   -0.11
6.5                                     -4.94   -2.12   -1.02   -0.05
6.6                                     -5.53   -2.64   -1.33   -0.02
6.7                                     -6.09   -3.12   -1.61   -0.01
6.8                                     -6.62   -3.56   -1.85   -0.01
6.9                                             -3.96   -2.07   0.00
7.0                                             -4.32   -2.26   0.00
7.1                                             -4.67   -2.44   0.00
7.2                                             -4.98   -2.60   0.00
7.3                                             -5.28   -2.74   0.00
7.4                                             -5.57   -2.88   0.00
7.5                                             -5.84   -3.01   0.00