|-in||none Input frame|
|-dev||ASCII Output device or filename (see Graphical output)|
|-cuts||15,99 Background frame cuts (in % of histogram)|
|-center||x0,y0 Centroid initial estimate|
|-nofit||No fit done (display only)|
|-circle||X,Y,R Display circle of center X,Y and radius R|
|-axisym||Fit an axisymmetric 2D-gaussian (default is a X-Y 2D-gaussian)|
|-hsize||0 Restrict the fitting window around estimated center (half-size in px, default is 0, i.e. fit the whole image)|
-quietstandard option for minimal output. For a non-axisymmetric gaussian,
X Y dX dY I dI Sx Sy dSx dSy B dB
ERRGAUS, are added to the input frame, and filled-in with the results and errors in the same order.
This fitting routine is definitely not very robust: it can be easily fooled by a bright secondary peak (e.g. a cosmic peak or the galaxy nucleus).
Should unify with Fit_Xpeak using an intermediate 2D-array.