id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
772	Source Moments are assgned 0 values when fitting PSFs	masiero	eugene	"The moments being passed to the Strail model (or any model for that matter) with
the ""pmSource *source"" call are being assigned 0 values.  This becomes a problem
when I divide the Sx and Sy for the fitting parameters, as the values become
NaN.    

I've traced the problem back to the values being fed in by the function
""pmSourceMoments"", which I believe is coming from psModules11 -> objects ->
pmSource.c lines 624-625.  I think just changing the PS_MAX comparision to go
from the calculated value to some number slightly greater than zero would fix
the problem.

I've developed a work around by adding a very small number to the input source
moments to prevent Divide-by-0 errors, but this seems like a dirty fix."	defect	closed	high		psphot	unspecified	minor	fixed