Figure 2

Real time pressure as a function of time of the first three main pressure features observed with POLA-01 (blue line), POLA-03 (orange line) and POLA-04 (green line), respectively. Left panel: pressure feature observed on January 15, 2022; Central panel: pressure feature observed on January 16, 2022; Right panel: pressure feature observed on January 17, 2022.