Layer
Name
CO2 snow with 0.1% H2O ice
Order
2
Physical characteristics
Type of layer
granular
Texture
sintered granular
Type of porosity
porous
Porosity
0.5 $\pm$ 0.02
Density
0.78 $\pm$ 0.03 $g.cm^{-3}$
Comments
Total H2O ice in the layer ~0.1 $\pm$ 0.015% (impurity + added) - The initial thickness (55mm) of the CO2+H2O layer decreases progressively during CO2 sublimation
Formation mode
manual deposition
Temperature
195.0  $\pm$ 5.0  $K$
Comments
The layer is prepared by mixing CO2 snow and sprayed H2O ice
Number
3
Arrangement
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
H2O ice 0.00075 added to the pre-exiting H2O ice 'impurity' in CO2 snow
CO2 snow 0.998950225
H2O ice impurity 0.00029977499999999995 small but strongly variable $H_2O$ ice impurity due to water vapor condensation on $CO_2$ snow.