3D spherical geometry in MYSTIC. Only works with mc_sensorposition and
mc_panorama, and only for solar backward. You have to set the sun
position for equatorial meridional, the panorama has been turned by 90
degrees so that the "horizon" points to the earth core at phi=0. Only
the full globe can be simulated. Still very experimental.
Arve Kylling
2010-03-10