cluster     1   number of spheres in cluster    19
    1  -3.55100 -19.30800   9.90100   0.700    1                                
    2  -1.77800 -16.41000  15.80900   0.700    2                                
    3  -0.73300 -14.42000  14.92500   0.700    3                                
    4  -2.13900 -15.72700  16.96900   0.700    4                                
    5  -1.10500 -13.73400  16.07900   0.700    5                                
    6   0.08100 -19.52700   9.62300   0.700    6                                
    7   0.49500 -20.05900  10.98700   0.700    7                                
    8  -1.26900 -20.12100   9.23800   0.700    8                                
    9  -1.95400 -20.06200  11.71700   0.700    9                                
   10  -0.67100 -16.45100  13.56100   0.700   10                                
   11  -1.08000 -15.75600  14.79400   0.700   11                                
   12  -1.80500 -14.37900  17.09700   0.700   12                                
   13  -0.52100 -19.62000  12.04900   0.700   13                                
   14  -2.18200 -13.59900  18.32400   0.700   14                                
   15  -1.78200 -12.32500  18.43600   0.700   15                                
   16  -2.86500 -14.14300  19.23600   0.700   16                                
   17  -0.90400 -17.66800  13.37100   0.700   17                                
   18  -2.24200 -19.81700  10.29700   0.700   18                                
   19  -0.47400 -18.20600  12.20200   0.700   19