Results of the initial C 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). Large black dots correspond to solutions that have S/N_PIMA higher than the detection threshold of 5.92, which is indicated by the dashed line in the bottom panel. Large grey dots are solutions with 5.52 < S/N_PIMA ≤ 5.92 (potential detections) and small grey dots are solutions with S/N_PIMA ≤ 5.52 (non-detections).