Technical Supplement: Metric Birefringence and Impedance Derivation in LEO Optical Channels

Note on Empirical Calibration: "The quantitative values provided in this supplement (e.g., the 66 ps and 188 ps timing residuals) serve as a Proof of Concept to demonstrate the algorithmic capability of the Gravitational Impedance (K_g) derivation. While these figures represent the predicted scale of vacuum anisotropy, they are currently being cross-referenced against high-fidelity, raw telemetry from the QUESS (Micius) mission. This record establishes permanent academic priority for the Metric Birefringence framework and the path-integrated geopotential model, independent of subsequent fine-tuning of the experimental parameters."