cluster     1   number of spheres in cluster    15
    1  72.25700  48.91600   7.16200   0.700    1                                
    2  71.05200  48.58800   6.55900   0.700    2                                
    3  72.26600  49.68800   8.31800   0.700    3                                
    4  67.43400  46.26500   9.15900   0.700    4                                
    5  69.86500  49.03800   7.11800   0.700    5                                
    6  71.07700  50.13400   8.88000   0.700    6                                
    7  67.70600  47.62700   9.16600   0.700    7                                
    8  66.59100  45.75500   8.18400   0.700    8                                
    9  68.58000  50.32000   8.90600   0.700    9                                
   10  69.86900  49.81300   8.28100   0.700   10                                
   11  67.11600  48.44800   8.20200   0.700   11                                
   12  66.28700  47.86600   7.23200   0.700   12                                
   13  65.68800  48.63100   6.23100   0.700   13                                
   14  66.05800  46.55700   7.27000   0.700   14                                
   15  67.39500  49.82100   8.19000   0.700   15