I'have also tried to udse m_map functions. Bit I have still difficulties to manage the axis scale (see attached file):
m_proj('Satellite','lon',0,'lat',0,'alt',5.6506,'rec','off','rot',0)
m_coast('patch',[.6 1 .6]);
hold on;
[mC,hC] = contour(az1,el1,CoA, ISO)
Many thanks for your Help !