The PSR J0248+6021 proper motion measured by different methods (Sect. 3.3). The weighted average of   ±  11 mas yr^-1 and PA  =  27°  ±  6° is shown by the dark cross. The three different determinations are labeled NBPP_2_BON, splitted_BON, and BON_FITWAVE and are described in the text. Solid error bars are  ±1σ and dashed error bars are  ±3σ.