cluster     1   number of spheres in cluster    15
    1 -30.29800 -12.44700  21.21600   0.700    1                                
    2 -30.13700  -7.43500  19.50200   0.700    2                                
    3 -29.65000  -8.70900  19.80300   0.700    3                                
    4 -28.19300 -10.54400  21.97800   0.700    4                                
    5 -29.24100  -6.28900  19.52400   0.700    5                                
    6 -27.44200  -7.84800  20.14800   0.700    6                                
    7 -28.80300 -12.43900  20.84000   0.700    7                                
    8 -27.95500 -12.03600  22.05400   0.700    8                                
    9 -27.95500 -10.24000  20.50700   0.700    9                                
   10 -27.92600  -6.59900  19.85500   0.700   10                                
   11 -28.37600  -8.88000  20.11600   0.700   11                                
   12 -26.57200 -12.28700  21.78800   0.700   12                                
   13 -29.59300  -5.11900  19.35300   0.700   13                                
   14 -26.24800  -7.99800  20.37300   0.700   14                                
   15 -28.53100 -11.40600  19.82000   0.700   15