cluster     1   number of spheres in cluster     8
    1  28.51000   5.38200  65.63500   0.700    1                                
    2  27.12800   3.57900  64.77300   0.700    2                                
    3  27.78700   6.27700  64.76200   0.700    3                                
    4  26.46800   4.49300  63.96000   0.700    4                                
    5  28.09000   7.62800  64.72100   0.700    5                                
    6  28.10100   4.08900  65.55500   0.700    6                                
    7  26.79800   5.80900  63.95300   0.700    7                                
    8  25.23500   3.89900  62.94300   0.700    8