Results of the initial K band fringe search on RadioAstron baselines using PIMA. Delay (top panel), rate (middle panel), and S/N (bottom panel) of the PIMA fringe-fit solutions are plotted against the projected baseline length (in Mλ). The threshold for a detection is S/N_PIMA > 5.72 (large black dots). Solutions with 5.30 < S/N_PIMA ≤ 5.72 are marked by large grey dots and solutions with S/N_PIMA ≤ 5.30 are marked with small grey dots.