&38\
7.5 &16.7 &245949 &280 &2.0 &40\
8.5 &14.9 &211649 &325 &2.7 &42\
9.5 &13.9 &175431 &425 &3.1 &45\
10.5 &13.4 &122423 &550 &3.6 &50\
11.5 &13.0 &65428 &850 &3.7 &55\
12.5 &12.8 &27387 &1200 &4.3 &65\

With three free parameters and only two observables, we cannot uniquely determine the properties of the gas in mask 1. Rather, we compute for each $T_{ex}$ bin, a family of $R$, density and CO column density per unit line width solutions. If we knew [*a priori*]{} the value of $R$, then we could compute a unique density and CO column density per unit line width for each $T_{ex}$. With no knowledge of $R$, then the values of density and CO column density per unit line width span a range of approximately a factor of 4, with density and CO column density per unit line width inversely correlated. The family of solutions for the physical parameters of the gas show some significant general characteristics. First, for higher values of $T_{ex}$, only solutions with $R\geq50$ fit the data. This is encouraging as the higher excitation gas has on average the largest column density and we do not expect significant fractionation in the more shielded regions. 