REVISION DATE: 11-Dec-2017 12:12:32

The graphs below show how I defined the tracks. Grey/green patches are what is averaged for each track.

 
Track pixels: 
Track:  1       2       3       4       5       6       7       8       9      10      11      12      13      14
Left:   1      78     152     226     296     369     439     511     585     656     727     799     873     948
Right:  77     151     225     295     368     438     510     584     655     726     798     872     947    1024

Figure 1

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Figure 15