R.J. Salvador has sent in an update showing the performance of his LOD model, which is based on our solar system dynamics theory. He tells us that:
Below is an update of the comparison of actual LOD data to the LOD model prediction from December 1st 2015 to March 1st 2016. The actual data tracks well to the model prediction. There is a deviation from the model from around January 1st to January 12 that is within 2 sigma and then the actual data tracks the model prediction again. I wonder what caused that? I will update the comparison again in two months. So far it is looking good.
This excellent performance is a clear demonstration that we are working in the right direction, and that differential planetary orbital motion is coupled to the spin rates of the planets with the former a direct causal forcing on the latter. This in turn implies that perturbation theory is incomplete, as it fails to differentiate between direct straight-line gravitational force and subtle secondary effects such as gyroscopic precession.
The Sun is also subject to these planetary forcings, and this might help explain why R.J.’s earlier planetary motion model tracks and predicts solar variation so well.
Well done R. J. Salvador!