cluster     1   number of spheres in cluster    21
    1  -1.77700  40.25900  -1.51800   0.700    1                                
    2  -2.53500  39.54500  -0.59500   0.700    2                                
    3  -1.80700  39.89700  -2.86100   0.700    3                                
    4  -3.31300  38.47100  -1.01500   0.700    4                                
    5  -6.78700  33.41600  -3.06100   0.700    5                                
    6  -6.21900  34.05100  -0.81600   0.700    6                                
    7  -7.51500  32.05600  -1.21100   0.700    7                                
    8  -2.58800  38.82200  -3.28000   0.700    8                                
    9  -3.34100  38.10000  -2.35800   0.700    9                                
   10  -6.16100  34.29900  -2.18700   0.700   10                                
   11  -7.46800  32.30000  -2.57900   0.700   11                                
   12  -6.88900  32.93200  -0.33000   0.700   12                                
   13  -2.57100  38.41100  -4.75400   0.700   13                                
   14  -4.78700  36.23800  -2.04500   0.700   14                                
   15  -4.06100  37.06600  -2.79500   0.700   15                                
   16  -5.42300  35.27700  -2.71300   0.700   16                                
   17  -3.53000  37.73700  -5.19000   0.700   17                                
   18  -1.60300  38.77800  -5.45500   0.700   18                                
   19  -4.88000  36.36600  -0.82500   0.700   19                                
   20  -8.30300  31.25100  -3.67100   0.700   20                                
   21  -6.95900  32.60600   1.36700   0.700   21