cluster     1   number of spheres in cluster     9
    1  28.49800  13.60900  18.53600   0.700    1                                
    2  28.99300  13.01100  17.47700   0.700    2                                
    3  28.17000  14.85000  18.42800   0.700    3                                
    4  29.27100  13.65300  16.29300   0.700    4                                
    5  28.43100  15.53400  17.24400   0.700    5                                
    6  28.98700  14.96300  16.17200   0.700    6                                
    7  29.29200  15.71100  14.96500   0.700    7                                
    8  29.97900  15.16900  13.95200   0.700    8                                
    9  28.91600  16.97700  14.84200   0.700    9