The following graphs try to show the effect of moving the pixels used to bin a track around. How much does the signal change depending on were you defined the track. In this page the track width was not changed on the center pixel. All the tracks were 41 pixels wide. The center of the track was varied by plus or minus 12 pixels. This means that in the extreme cases the tracks were in the dark area between the tracks. The graphs below are for Track 1

The first four graphs show the problem in ADU/pix/sec. The variability is pretty high. Also notice on the fourth graph I have zoomed in to sections so you can see there some small wavelength shifting going on.

No system responce data exist for Track 1 so I can not convert the data and look at the effects.