DS24 spatial variations

[Andrew Bennett <andrew.bennett@ns.sympatico.ca>]

I have added a section on analyzing the spatial
structure of DS24 images and flats to
http://www3.ns.sympatico.ca/andrew.bennett/tass/mkivphot/mkivphot.html

I am still calling this analysis "preliminary" -
mostly because I don't understand what is going on.

For example, the photometric calibration shows
that some images are a lot less sensitive, implying
clouds. But the spatial structure analysis doesn't
show these images as being different.

I've thrown in some analysis of DS20 which is
different again ...

Andrew Bennett, Avondale Vineyard