Quote by Garth
The point is that it appears the spacecraft are not following the free falling geodesics of GR....
Garth

I've now got straightened out by Ich and Pervect in the relativity forum, and have a last question: you mentioned that "the Pioneer anomalous acceleration is (8.74 ± 1.33) × 1010 m.sec2 " Is this the difference between the
GR acceleration and the Pioneer acceleration, or between the
Newtonian acceleration and the Pioneer acceleration?