Plots of fringe-fitted data

Figure 5: Amplitude and phase as a function of frequency, as in Fig. 2, but with the delay calibration applied. Compared to Fig. 2, the phases across the band are now much flatter and the phase offsets between IFs have been removed. The data in two Torun IFs (7 and 8) and one Westerbork IF have been flagged as FRING was unable to find solutions for them. Fig. 2 shows that the data in these IFs are in fact just noise.

Figure 6: Amplitude and phase as a function of time, as in Fig. 3, but with the amplitude and fringe-fit calibration applied. Unlike in Fig. 3, the phases are now flat with time and close to zero. Note that there are much less data on the Onsala baseline than in Fig. 3. Where FRING has been unable to find solutions, the data have been flagged.