Prediction of Dst at Earth using Solar Orbiter data mapped to L1 under the assumption of a constant CME speed (339 km s⁻¹). The solid black line shows the observed Kyoto Dst, the solid blue line the Dst predicted by the model using Wind data, while the dashed green line shows the Dst that would have been predicted using a forecast from Solar Orbiter. The dotted red line shows the results for the flux rope magnetic field taken from 3DCORE, which were used to predict the Dst resulting from the second half of the flux rope observed by Solar Orbiter.