The Virtual Instrument Team will aid the definition of THOR instruments making use of kinetic simulations of ion and electron distributions and generating synthetic observations based on instrument characteristics. An example of the output of the analysis is given below. The figure depicts the counting rate of a virtual proton detector per square centimeter and steradian in the magnetosheath region just downstream of the bow shock. The mesh depicts the foreseen angular and speed resolution of this virtual instrument. The proton distribution function used as input is obtained from FMI's global hybrid Vlasov simulation code Vlasiator.