cluster     1   number of spheres in cluster     9
    1  28.44500  13.51500  18.92800   0.700    1                                
    2  28.36900  14.87500  18.91900   0.700    2                                
    3  28.86800  12.86100  17.79900   0.700    3                                
    4  28.71700  15.56900  17.77900   0.700    4                                
    5  29.21900  13.55400  16.66000   0.700    5                                
    6  29.15300  14.93800  16.61300   0.700    6                                
    7  29.49800  15.64800  15.45700   0.700    7                                
    8  30.22100  15.04600  14.53200   0.700    8                                
    9  29.09400  16.89300  15.32200   0.700    9