cluster     1   number of spheres in cluster     8
    1  -4.51600   1.90700  15.78400   0.700    1                                
    2  -6.87700   1.62600  14.97100   0.700    2                                
    3  -6.33200   0.90900  17.31000   0.700    3                                
    4  -5.78400   1.03000  15.85100   0.700    4                                
    5  -5.42300  -0.26900  15.30700   0.700    5                                
    6  -3.97900   1.72100  14.48100   0.700    6                                
    7  -7.95200   0.70200  14.95400   0.700    7                                
    8  -5.41400   0.24800  18.16300   0.700    8