We take the source extractor output on our calibration images and fit a 2nd order polynomial to the r = sqrt((x-x0)^2 + (y-y0)^2) values.
B:
R:
G:
M:
We take the source extractor output on our calibration images and fit a 2nd order polynomial to the r = sqrt((x-x0)^2 + (y-y0)^2) values.
B:
R:
G:
M: