The HET pupil illumination function should be derivable from the ZPSEC values obtained with the acm images. The raw acm images contain the PUPILLUM keyword card that gives the illumination values used by tcs or ocd for some things (?). I combine the codes acm_nights and acm_rstrct to assemble, from the RAW acm images, information about the PUPILLUM values and the measure I use for tracker "radius" (which is just X_STRT and Y_STRT added in quadrature). I am calling this routine acm_pupil_data.

 
I ran this on mcs for Jan1-12, 2019:
%  acm_pupil_data list.dates none N  
 

The resultant table file (ACMPUPIL) can be used to plot PUPILLUM values in any of the other acm plots where appropriate.

The HET pupil illumination values taken from acm image headers in early Jan2019. The PUPILLUM keyword was used to extract the pupil correction from each image. The (X_STRT,Y_STRT) values were processed in the same way as my other acm routines (basically I just add the two in quadrature and assign the sign of the X_STRT value). We see a little scatter, especially at large radii, but the trend is clearly primarily dedendent on the radial offset of the tracker. These data are from 3186 images taken on Jan1 to Jan12 (2019) and hence comprise results from many different tracks. As a consistancy check, the red points are taken from the images collected on the 16 nights (Feb to May 2019) analysed in May2019. The tewo sets of points agree well.