Epoch 18, 2010 January 18. a) Core spectrum, where Cb and Qa represent the core at the C and Q bands. Qb is the feature moving downstream. For comparisons, see Figure 4d. Core-shift vectors of all frequency pairs using b) Qa and c) Qb. Similarly, as in the previous epoch, the two components have a similar impact on the direction of KQ core-shift vector. Power-law fits (red curve) using d) Qa and e) Qb. Again, the flare appears to hinder the correct location of the core at the Q band (43 GHz). The effect is less pronounced than in the previous epoch, but it disorders the core-shift effect by increasing the core-shift values at the high frequencies, as seen in d).