Pulsar PSR J1022+1001. Top: Simulated data. Bottom: Real data from EPTA DR2full. The properties that are exactly reproduced are the time span, number of observations, frequency coverage, and the noise levels. The main difference between the two datasets is in the distribution of the ToAs; while in our simulations, ToAs are unevenly sampled, they are still uniformly distributed over the observational timespan, meaning that sparse observations and long gaps are absent (as can be clearly seen in a visual comparison of the two panels).