The four components of the potential

of a point charge, whose position at the time

is

, at the observation points

are used to compute various electric and magnetic properties. The time component is the scalar potential

and the three space components are the vector potential (

, 0, 0). The system is rotationally symmetric around the

axis. The scalar potential for cylindrical coordinates,

, is independent of

. The observation plane is parametrized by

with

= 50 meters with an arbitrary

value. The charge enters the observation plane at time

with

. At

the charge passes the origin with positive speed

. The charge leaves the observation plane at time

. The five independent variables are

. The electric and magnetic field vectors, the Poynting vector, and the energy density are displayed on the observation plane. SI (MSKA) units are used.