cluster     1   number of spheres in cluster     8
    1  15.87100  21.34900  61.24100   0.700    1                                
    2  16.90100  22.00900  62.07000   0.700    2                                
    3  16.51200  23.57700  62.13100   0.700    3                                
    4  16.98800  24.17400  63.45000   0.700    4                                
    5  17.69300  25.41800  63.19200   0.700    5                                
    6  16.66100  26.65000  63.24400   0.700    6                                
    7  16.29000  27.00000  64.35200   0.700    7                                
    8  16.30100  27.08000  62.19000   0.700    8