d1su8a_    d1su7a_    d1sufa_    d1su6a_ 
d1su8a_           0.0        0.0        0.0        0.0 
d1su7a_           0.0        0.0        0.0        0.0 
d1sufa_           0.0        0.0        0.0        0.0 
d1su6a_           0.0        0.0        0.0        0.0