cluster     1   number of spheres in cluster     8
    1  27.35000   8.89300  20.21000   0.700    1                                
    2  28.61900   8.72800  20.77800   0.700    2                                
    3  26.93800  10.21200  20.13700   0.700    3                                
    4  29.19900   9.93300  21.18100   0.700    4                                
    5  30.51200  10.27200  21.82700   0.700    5                                
    6  30.83200  11.45700  22.10700   0.700    6                                
    7  31.27900   9.33500  22.09200   0.700    7                                
    8  28.12800  11.25100  20.82300   0.700    8