  The recent launch of Solar Orbiter and BepiColombo opened a brief window in
which these two spacecraft were positioned in a constellation that allows for
the detailed sampling of any Earth-directed CMEs. Fortunately, two such events
occurred with in situ detections of an ICME by Solar Orbiter on the 19th of
April and the 28th of May 2020. These two events were subsequently also
observed in situ by BepiColombo and Wind around a day later. We attempt to
reconstruct the observed in situ magnetic field measurements for all three
spacecraft simultaneously using an empirical magnetic flux rope model. This
allows us to test the validity of our flux rope model on a larger and more
global scale and allows for cross-validation of the analysis with different
spacecraft combinations. Finally, we can also compare the results from the in
situ modeling to remote observations obtained from the STEREO-A heliospheric
imagers. We make use of the 3D coronal rope ejection model in order to simulate
the ICME evolution. We adapt a previously developed ABC-SMC fitting algorithm
for the application to multi point scenarios. We show that we are able to
generally reconstruct the flux ropes signatures at three different spacecraft
positions simultaneously using our model in combination with the flux rope
fitting algorithm. For the well-behaved 19th of April ICME our approach works
very well. The 28th of May ICME, on the other hand, shows the limitations of
our approach. Unfortunately, the usage of multi point observations for these
events does not appear to solve inherent issues, such as the estimation of the
magnetic field twist or flux rope aspect-ratios due to the specific
constellation of the spacecraft positions. As our general approach can be used
for any fast forward simulation based model we give a blueprint for future
studies using more advanced ICME models.
