d1tk9a_    d1tk9b_    d1tk9c_    d1tk9d_ 
d1tk9a_           0.0        0.0        0.0        0.0 
d1tk9b_           0.0        0.0        0.0        0.0 
d1tk9c_           0.0        0.0        0.0        0.0 
d1tk9d_           0.0        0.0        0.0        0.0