cluster     1   number of spheres in cluster    21
    1  31.46100   9.79300   0.00800   0.700    1                                
    2  36.40500  10.84400   4.12200   0.700    2                                
    3  36.22300   9.66800   4.83000   0.700    3                                
    4  36.54700  10.76400   2.72600   0.700    4                                
    5  36.13100   8.41100   4.20700   0.700    5                                
    6  36.47200   9.51500   2.08900   0.700    6                                
    7  36.15500   6.95100   2.16100   0.700    7                                
    8  34.62800   5.16700   1.18700   0.700    8                                
    9  36.24900   8.32700   2.82800   0.700    9                                
   10  32.76200   9.08200  -0.32800   0.700   10                                
   11  34.71200   6.60600   1.70700   0.700   11                                
   12  34.98800   4.28100   2.35100   0.700   12                                
   13  33.85600  10.04100  -0.75300   0.700   13                                
   14  34.31800   7.51100   0.58200   0.700   14                                
   15  33.23100   8.26800   0.75700   0.700   15                                
   16  36.19300   3.73200   2.30500   0.700   16                                
   17  36.56500   3.10100   3.29000   0.700   17                                
   18  34.56300  10.59400   0.09600   0.700   18                                
   19  34.22500   4.15100   3.29400   0.700   19                                
   20  34.06000  10.20100  -1.95300   0.700   20                                
   21  34.98200   7.51300  -0.44900   0.700   21