Notes. Columns 1–11 show the pulsar observed, date (see Table 1 for specific times), the telescope, the LOFAR stations (if applicable, see Table 1 for specific station names), the FWHM of the RMSF from RM-synthesis, the error introduced by instrumental effects σ_inst, the Faraday depth of the ISM toward the pulsar φ_ISM as determined using the CODE TEC maps, the reduced chi-squared value for comparison between the ionospheric Faraday depths from ionFR using CODE TEC data and the observed Faraday depths, the Faraday depth of the ISM toward the pulsar φ_ISM as determined using the ROB TEC maps, the reduced chi-squared value for comparison between the ionospheric Faraday depth produced from ionFR using CODE TEC data and the observed Faraday depths. The final column gives the catalog RM value from psrcat (Manchester et al. 2005) for comparison. Note that ROB TEC maps were not available for the observations of B0834+06 taken in 2011. Since a single observation was obtained with WSRT, the reduced chi-squared value is not applicable because the Faraday depth of the ISM was determined by subtracting the Faraday depth of the ionosphere from the observed Faraday depth.