**Parameters:**-
*-in**none*Input frame*-nobkgnd*No-background flag *-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)

**Returns:**- Error status

**Note:**- Use with the
`-quiet`

standard option for minimal output. For a non-axisymmetric gaussian,where X,Y,I,Sx,Sy and B are respectively the gaussian position, intensity, dispersions and background, and dX, etc. are the associated formal errors. Two 6-DOUBLE keywords,X Y dX dY I dI Sx Sy dSx dSy B dB

`CENGAUS`

and`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).

**Todo:**- Use image centroid (and not max) as first guess.
Should unify with Fit_Xpeak using an intermediate 2D-array.

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