cluster     1   number of spheres in cluster    20
    1  15.31600  49.01800 -52.06600   0.700    1                                
    2  15.54800  49.13200 -53.40100   0.700    2                                
    3  15.11600  47.95800 -56.85700   0.700    3                                
    4  16.10600  50.70100 -57.76500   0.700    4                                
    5  14.24800  48.20800 -51.56600   0.700    5                                
    6  13.78100  47.71700 -53.85700   0.700    6                                
    7  16.38900  48.17500 -57.64900   0.700    7                                
    8  15.39800  48.61600 -55.56400   0.700    8                                
    9  16.80500  49.54300 -57.14600   0.700    9                                
   10  13.52900  47.60600 -52.55900   0.700   10                                
   11  14.82100  48.49500 -54.23400   0.700   11                                
   12  17.36100  47.24400 -57.21700   0.700   12                                
   13  16.73900  51.37200 -61.32600   0.700   13                                
   14  15.06000  52.40400 -59.71100   0.700   14                                
   15  14.05300  47.97800 -50.35100   0.700   15                                
   16  13.10000  47.05800 -54.60300   0.700   16                                
   17  14.94500  50.03300 -60.36700   0.700   17                                
   18  16.45000  49.57400 -55.77700   0.700   18                                
   19  16.65000  50.80800 -59.09100   0.700   19                                
   20  15.76900  51.20600 -60.24300   0.700   20