WGS 84 (CTS, ECEF) Coordinate to ECI (CIS, Epoch J2000.0) Coordinate Transformation
Efficient vectorized implementation for converting WGS 84 (CTS, ECEF) coordinates to ECI (CIS, Epoch J2000.0) coordinates. The algorithm achieves conversion accuracy of approximately 1.2×10^-11 km when validated against STK ephemeris data, utilizing matrix transformations and celestial reference frame calculations.