cluster     1   number of spheres in cluster    12
    1  -5.21200  22.97700   4.29400   0.700    1                                
    2  -7.41500  23.18500   5.39300   0.700    2                                
    3  -5.64300  23.89200   3.26900   0.700    3                                
    4  -7.83300  24.07600   4.38700   0.700    4                                
    5  -5.69900  21.65100   6.45900   0.700    5                                
    6  -6.52500  20.35500   6.29200   0.700    6                                
    7  -6.11400  22.62700   5.35900   0.700    7                                
    8  -6.96900  24.44000   3.32500   0.700    8                                
    9  -5.96800  19.29500   7.11500   0.700    9                                
   10  -6.52100  25.76800   1.07200   0.700   10                                
   11  -8.09900  26.78600   2.70500   0.700   11                                
   12  -7.58900  25.56800   2.08100   0.700   12