In situ magnetic field measurements in local radial tangential normal (RTN) coordinates from Solar Orbiter (a/e), BepiColombo (b/f), and Wind (c/g) for the 2020 April 20 (left) and 2020 May 28 (right) event. The two bottom panels (d/h) show the in situ proton density number N_p and the associated plasma beta coefficient, β_p. The blue shaded area represents our estimated intervals for the unperturbed magnetic flux ropes (UMFR) which we subsequently use in our fitting approach.