LISA Pathfinder should also be able to measure lightspeed differences outside the earth LASOF ellipsoid ( according to Quantum FFF Theory: Function Follows Form).
LASOF = Local A-Symmetrical Oscillating vacuum Frame.
Dayton Miller suggested already in 1925, that the altitude of lightspeed measuring above the earth surface ( Mount Wilson) has a direct positive effect on the ether wind measurement results, which is in line with the LASOF ellipsoid drag area around the earth.
see also : the OÇonnell LASOF effect: http://vixra.org/pdf/1409.0164v2.pdf
for Lisa see: http://sci.esa.int/lisa-pathfinder/57385-freely-floating-in-space/
Since the LISA has also gravity direction anomaly equipment, the so called satellite FLYBY anomalies could come to more clarity. see: https://plus.google.com/106755671021793983696/posts/G8SZZ641K3z
Gravity anomaly effects based on dual micro black hole lighthouse effects inside the earth, ( Flyby anomaly) and others.
My first poster on gravity related light speed and Michelson and Morley: