This file contains data for trial slip surfaces filtered by absminma
 and nonconverging surfaces.
Converging F are written here, but not used in search for minimum F.
        xcen_ft         ycen_ft   zcen_ft   radius_ft   angle     minma     F_Bish    F_Ord
    1258401.9727     216371.9230   200.000    51.234   122.068  6.776E-03   111.000     1.298
