Nordtvedt Effect · Lunar Laser Ranging
unseel.com · strong equivalence principle · η = 4β − γ − 3
Round trip ≈ 2.5 s
Range σ few mm
Phase
Earth (strongly self-bound)
Moon + retroreflector
Sun / laser pulse
Predicted 13 m × η polarization
Unseel.com · The Nordtvedt Effect and Lunar Laser Ranging