  Solutions of the two-body problem with the simultaneous action of the solar
electromagnetic radiation in the form of the Poynting-Robertson effect are
discussed. Special attention is devoted to pseudo-circular orbits and terminal
values of osculating elements. The obtained results complete those of Klacka
and Kaufmannova (1992) and Breiter and Jackson (1998). Terminal values of
osculating elements presented in Breiter and Jackson (1998) are of no physical
sense due to the fact that relativistic equation of motion containing only
first order of $\vec{v}/c$ was used in the paper.
