cluster     1   number of spheres in cluster     9
    1  28.38800  13.40500  18.74200   0.700    1                                
    2  28.13400  14.70000  18.62000   0.700    2                                
    3  28.91800  12.98700  17.63600   0.700    3                                
    4  28.45100  15.39800  17.46300   0.700    4                                
    5  29.17100  13.63300  16.60900   0.700    5                                
    6  29.01100  14.86500  16.35400   0.700    6                                
    7  29.29600  15.58400  15.22600   0.700    7                                
    8  28.91300  16.85800  15.09900   0.700    8                                
    9  29.99400  15.05800  14.23000   0.700    9