The 100-m Effelsberg radio telescope of the Max-Planck-Institut für Radioastronomie and the associated data reduction facilities are available to all qualified scientists. The present policy allows the
allocation of up to 40% of available observing time to visitors. The directors of the institute make observing time available to applicants
based on the recommendations of the Program Committee for Effelsberg
(PKE), which judges the scientific merit of the observing proposals.
Observing proposals can be submitted to three deadlines a year,
normally on February 1st, June 1st, October 1st.