I want to use the 3D analyst on the Stereo pair to get a topographic profile
There have been a number of blogs and questions about mapping data from Mars:
Mapping Mars with ArcGIS Pro | Esri Australia Technical Blog
PIGWAD and Mars (or creating your own Mars Explorer) | ArcGIS Blog
Mapping a Mission to Mars | ArcNews
On Stack Exchange there is a topic on it too and there seem to be a number of geographic coordinate systems available in ArcGIS:
Choosing coordinate system for mapping Mars in ArcGIS Desktop? - Geographic Information Systems Stack Exchange
Retrieving data ...