cluster     1   number of spheres in cluster     8
    1  15.74500  21.85400  60.67400   0.700    1                                
    2  16.52200  22.26500  61.91300   0.700    2                                
    3  16.22200  23.74200  62.20800   0.700    3                                
    4  16.99400  24.18400  63.45100   0.700    4                                
    5  17.69100  25.51900  63.18500   0.700    5                                
    6  16.66000  26.64600  63.23900   0.700    6                                
    7  16.29300  26.99800  64.35000   0.700    7                                
    8  16.29600  27.08400  62.16200   0.700    8