cluster     1   number of spheres in cluster    15
    1  11.20700 -26.86000  15.41900   0.700    1                                
    2  11.38400 -28.44700  13.57300   0.700    2                                
    3   8.69200 -29.66200  13.89100   0.700    3                                
    4  10.20900 -30.39900  16.57900   0.700    4                                
    5   9.39800 -28.68900  14.95000   0.700    5                                
    6   9.09800 -29.26800  16.31700   0.700    6                                
    7   7.68700 -29.76900  16.07800   0.700    7                                
    8  10.74700 -27.98700  14.58400   0.700    8                                
    9  10.36000 -30.75700  18.07900   0.700    9                                
   10   6.56400 -28.75500  16.45600   0.700   10                                
   11   7.56700 -30.22200  14.72800   0.700   11                                
   12   9.61900 -30.19800  18.91700   0.700   12                                
   13   6.62500 -28.26500  17.60600   0.700   13                                
   14  11.24400 -31.60100  18.34100   0.700   14                                
   15   5.71000 -28.54100  15.56800   0.700   15