cluster     1   number of spheres in cluster     9
    1  28.36400  13.41400  18.74000   0.700    1                                
    2  28.11300  14.70700  18.63800   0.700    2                                
    3  28.88000  13.00100  17.61500   0.700    3                                
    4  28.40200  15.40500  17.47600   0.700    4                                
    5  29.14700  13.64900  16.59500   0.700    5                                
    6  28.98100  14.89700  16.36800   0.700    6                                
    7  29.28100  15.60300  15.22200   0.700    7                                
    8  29.98700  15.08800  14.20900   0.700    8                                
    9  28.90600  16.86700  15.10100   0.700    9