//JPL		C3O
//Temp (K)	log(Z)
3.000	1.1249
6.000	1.4203
9.375	1.6121
18.75	1.9114
37.50	2.2116
75.00	2.5122
150.0	2.8130
225.0	2.9891
300.0	3.1138