  The OSE (Offline Simulations Environment) simulator of the LPF (LISA
Pathfinder) mission is intended to simulate the different experiments to be
carried out in flight. Amongst these, the thermal diagnostics experiments are
intended to relate thermal disturbances and interferometer readouts, thereby
allowing the subtraction of thermally induced interferences from the
interferometer channels. In this paper we report on the modelling of these
simulated experiments, including the parametrisation of different thermal
effects (radiation pressure effect, radiometer effect) that will appear in the
Inertial Sensor environment of the LTP (LISA Technology Package). We report as
well how these experiments are going to be implemented in the LTPDA toolbox,
which is a dedicated tool for LPF data analysis that will allow full
traceability and reproducibility of the analysis thanks to complete recording
of the processes.
