iraf.net

Hi,
First of all, let me please say that if there is a known way to obtain accurate photometry of a semi-crowded field on a rapidly, and non-uniformly, varying background where tip-tilt adaptive optics was used for the program fields but, due to the nature of the equipment being used, was not available for the standards, then that will probably negate the need for an answer to my question(s) below.
Due to some of the issues stated above, I am trying to use mkapfile to build growth curves from a series of photometry files where the sky fitting annulus grows out along with the aperture (I am not completely sure, but I think this should yield somewhat viable growth curves). However, I have not found a way within the iraf task phot to make this happen automatically (is there a way to do this? I know you can use a list of apertures, but can you do the same for the annuli?). So, I wrote a script which made the measurements for each aperture and its associated annulus individually. However, when I tried to put the resulting list of photometry files into mkapfile, it gave me a blank plot with the aperture axes ranging from 17.5 to 18.5 (my apertures ranged from 1 to 100), and a message that the fit did not converge. I thought that mkapfile did a fit to a scatter plot, but is this not the case? Is there some way that I can make mkapfile work for this type of data?Thank you so very much for your time and consideration.
~Sean