KEPLER_AZIMUT[1:2] indicates which range of Azimut is retained
in the computation (Azimut Zero corresponds to the oriented minor axis,
i.e. is at KEPLER_ROTA in the sky plane).
For example 90 270 indicates Az between 90 and 270 degrees, while
270 90 indicates As from 0 to 90 and 270 to 360.
The Azimut coverage can be visualized using command SHOW KEPLER_VELO.