finder    roll    pitch     yaw
------    ----    -----    ----
   0      -1.8    -21.4     0.3
   3      -3.8    -21.1     0.8
   6      -3.6    -20.4     1.9
   9      -4.5    -20.4     3.3
  12      -3.2    -20.6     4.4
  15      -2.2    -20.7     4.9
  18      -4.1    -20.7     3.9
  21      -4.5    -20.4     3.9
  24      -4.6    -20.0     3.4