cluster     1   number of spheres in cluster    15
    1  11.46100 -10.94500  23.16500   0.700    1                                
    2  17.11400 -15.14000  20.60800   0.700    2                                
    3  12.58400 -10.09100  23.25300   0.700    3                                
    4  11.42300 -11.96000  22.17000   0.700    4                                
    5  16.01100 -15.02600  19.71700   0.700    5                                
    6  17.47300 -14.04300  21.44700   0.700    6                                
    7  13.67200 -10.25100  22.35100   0.700    7                                
    8  12.50500 -12.12600  21.26800   0.700    8                                
    9  15.25900 -13.81300  19.65800   0.700    9                                
   10  16.71900 -12.82600  21.38900   0.700   10                                
   11  15.20800 -10.48000  19.54600   0.700   11                                
   12  13.64800 -11.26900  21.35300   0.700   12                                
   13  15.61400 -12.71300  20.49500   0.700   13                                
   14  14.82400 -11.44500  20.42300   0.700   14                                
   15  16.20400 -10.63400  18.81300   0.700   15