Hi Garth – New here to the forum but saw your posts and thought I would mention a potential discovery resulting from the GP-B experiment. Please add it to your list.
No, I do not have an alternative gravity theory but I do question the current model of precession and I believe GP-B (with its perfect gyros far above the wobbling earth) is in an ideal position to determine if the precession of the equinox observable (a change in earth orientation of about 50”p/y) is due to the torque of lunisolar forces acting on the oblate earth (current theory) or the observable of a solar system in motion (binary theory of precession). If I guess right, the spacecraft will mimic the precession observable even though it is floating free high above a wobbling earth. This is because we believe the precession observable is due to the motion of the sun and solar system curving through space.
I met with the GP-B team at Stanford a few months ago and they listened and were open minded about the possibility that our sun may have an unknown companion star (which is the theoretical cause of the solar system curving through space at 50”p/y). We discussed the polhode issue and they implied they were getting more signals than originally anticipated and it was a big task to try and separate all of the signals into identifiable buckets. But they were careful to keep the integrity of the experiment and remind me that they could not release results until the public announcement. Nonetheless, we spent a fair amount of time discussing companion star scenarios, which I found interesting.
Bottomline, I think they will either report that it will take more time than expected to sift and interpret all the signals, and or, that our solar system is curving through space at a rate that exceeds the expected results from the relativity experiment. I have posted a model (of the results I expect them to find) on my website at the Binary Research Institute:
Regardless of the results of the initial GP-B report I think NASA and Stanford are providing almost priceless research. The raw data should prove to be fundamentally helpful to scientists for years to come as we probe the motions of the earth and solar system on our journey through space. Bravo to Dr. Everitt and team!