cluster     1   number of spheres in cluster     5
    1  -4.64200   0.44800  15.50200   0.700    1                                
    2  -5.78500   0.58100  17.28300   0.700    2                                
    3  -4.11400   1.37300  16.27300   0.700    3                                
    4  -5.66500  -0.05400  16.11600   0.700    4                                
    5  -4.82000   1.46100  17.35500   0.700    5