mem objid      area   centerx   centery    aspect max10mspd  matchmem matchobid matchtint
   0     0       145       854       548  0.786656 14.313004        -1        -1         -1 
   2     1       240       873       549  0.609399 17.854635         0         0 0.35032563149645563 
   5     2       164       719       330  0.273851 14.978779        -1        -1         -1 
   6     3       109       853       556  0.791049 12.479474         0         0 0.88933537419512587