cluster     1   number of spheres in cluster     5
    1  -6.18300   0.94100  17.23200   0.700    1                                
    2  -7.28300   1.66400  17.44600   0.700    2                                
    3  -6.19200   0.05100  16.25200   0.700    3                                
    4  -5.08500  -0.73700  15.96800   0.700    4                                
    5  -5.19400   1.09500  17.91300   0.700    5