d1zpda1    d1zpdb1    d1zpde1    d1zpdf1 
d1zpda1           0.0        0.0        0.0        0.0 
d1zpdb1           0.0        0.0        0.0        0.0 
d1zpde1           0.0        0.0        0.0        0.0 
d1zpdf1           0.0        0.0        0.0        0.0