This plot shows the position of the optical axis derived from the
irdis distortion recipe.  
<br>
Optical axis x-positions of the right beam refer to the right beam product
extension with
size 1024x1024 pixel covering the pixel area x=[<b>1025</b>,2048], y=[1,1024]
of the raw frame.

</font><p><font size="2">
This plot is provisional, as the irdis distortion recipe is not yet fully operational.</font><p><font size="2">
2015-04-15: the Lyot stop (INS1.OPTI1.NAME) is ignored.
</font><p><font size="2">
The pinhole distance is about 14 pixels.