Inspect point source not being extracted.

[simontorres]

Related to the extraction problems for extended sources #64 #41 #146 and #129 there seems to be a problem in the FWHM thresholding which does not allow to extract a point source that is very wide, probably due to defocusing is just wider than the allowed threshold.

[simontorres]

The source I was mentioning was extracted setting --fit-targets-with gaussian (moffat is set to default).

I should focus on moffat fitting for this particular case

[simontorres]

The moffat fit seems perfectly fine. Is just the criteria for approval/rejection that is wrong.

[simontorres]

This is too week, ideas are welcome.

Criteria for approval of gaussian fits.

 if (fitted_gaussian.stddev.value > 0) and \
                    (fitted_gaussian.stddev.value < 4 * order):

Criteria for moffat fits.

if (fitted_moffat.fwhm > 0.5 * order) and \
                    (fitted_moffat.fwhm < 4 * order):