cluster     1   number of spheres in cluster     9
    1  -1.16700  15.53700  18.71900   0.700    1                                
    2  -0.87200  14.18200  18.62800   0.700    2                                
    3  -1.79000  16.16500  17.64200   0.700    3                                
    4  -1.20400  13.46900  17.48200   0.700    4                                
    5  -2.13300  15.44900  16.49100   0.700    5                                
    6  -1.83400  14.08800  16.40100   0.700    6                                
    7  -2.17400  13.36300  15.23700   0.700    7                                
    8  -2.94500  13.88300  14.30600   0.700    8                                
    9  -1.73700  12.14400  15.00500   0.700    9