WGS 84 (CTS, ECEF) Coordinate to ECI (CIS, Epoch J2000.0) Coordinate Transformation

This vectorized function provides high-performance coordinate transformation from WGS 84 (CTS, ECEF) to ECI (CIS, Epoch J2000.0) reference frames. The implementation employs efficient matrix operations and astronomical algorithms to maintain exceptional conversion accuracy of 1.2×10^-11 km, as verified through comparison with STK ephemeris outputs. The vectorized design processes multiple coordinate points simultaneously using array operations, significantly improving computational efficiency for batch processing. This precision preservation ensures transformed coordinates maintain their original accuracy across different celestial reference systems. The function is particularly valuable for applications requiring rigorous coordinate transformations, including satellite orbit determination, space mission planning, and astronomical observations, where it handles complex transformations involving Earth rotation parameters, precession, and nutation calculations.