cluster     1   number of spheres in cluster     9
    1  13.70300 -11.69700  21.05200   0.700    1                                
    2  13.17700 -12.89500  21.50600   0.700    2                                
    3  13.30900 -10.52500  21.62600   0.700    3                                
    4  12.25200 -12.91600  22.54000   0.700    4                                
    5  12.38300 -10.54900  22.66100   0.700    5                                
    6  11.82700 -11.73700  23.15100   0.700    6                                
    7  10.90100 -11.74100  24.20700   0.700    7                                
    8  10.62900 -10.63900  24.87500   0.700    8                                
    9  10.32100 -12.86100  24.51600   0.700    9