Diffraction limits resolution. The Rayleigh criterion states that two images are just resolvable when the centre of the diffraction pattern of one is directly over the first minimum of the diffraction pattern of the other.

Antenna radiation patterns are graphical representations of elements of the radiation characteristics of an antenna.

LOFAR antenna configuration

In this post, three types of statistics data for LOFAR telescopes are presented

Azimuth and Elevation are two coordinates that define the position of a celestial body in the sky.