cluster     1   number of spheres in cluster     6
    1  28.80900  19.28100  12.10700   0.700    1                                
    2  28.73900  18.18700  13.16800   0.700    2                                
    3  29.57500  15.72000  10.87000   0.700    3                                
    4  29.57900  15.29100  13.67000   0.700    4                                
    5  27.95700  17.05300  12.75500   0.700    5                                
    6  28.70100  15.68600  12.43400   0.700    6