no particles:      4960 102.9286  48.5000   0.0000        1       -1        0   63.16    
  no particles:      4960 102.9286  48.5000   0.0000        1       -1        0   63.16    
  no particles:      4960 102.9286  48.5000   0.0000        1       -1        0   63.16    
  no particles:      4960 102.9286  48.5000   0.0000        1       -1        0   63.16