OK, I played a little bit with images and this is my personal assessment on Rover position:Click to view attachment
On the right, I extended the last vertical (Pancam) projection and I'm almost sure of last Opportunit position identified in the small MOC inset...
On the left portion there are the Phil's Erebus map identifications, re-scaled and re-oriented, based on the R1 ridge azimut and terrain features.
All appear reasonable, but scale of this left portion should be about 2.4m/pixel! Interestingly, if we assume the same scale of right portion, the distance from closest "true" Erebus rim becomes 180m, close to the officual value
However, this imply that original MOC image scale of 1.45m/pixel is wrong
, and I'm not very confortable with this conclusion...