[AstroPy] A question about contour maps

[Jean-Baptiste Marquette]

Dear AstroPy people,

I have an ASCII table with RA/DEC coordinates and the values of a given parameter at those positions. I would like to plot a contour map of this parameter on an image with RA/DEC coordinates. I was able create a blank image using pyfits. I guess I could use the APLpy FITSFigure.show_contour method if my data were organized as a FITS file.
How to export from ASCII to FITS?

Thanks for your help,
Jean-Baptiste Marquette