Position Analysis of the KITG GNSS Station for February 2026: Precise Point Positioning and Atmospheric Assessment
Abstract
This study presents a comprehensive assessment of the data quality and positional performance of the KITG Global Navigation Satellite System (GNSS) station for February 2026 using Precise Point Positioning (PPP) processing. The analysis evaluates ambiguity resolution performance, satellite tracking statistics, coordinate stability, carrier-phase and pseudo-range residuals, station clock behavior, and tropospheric zenith delay (TZD) estimation. The results indicate centimeter-level horizontal positioning accuracy and stable vertical component behavior after the PPP convergence period. Ambiguity fixing rates exceeded 90% during most observation intervals, while residual statistics confirm high data quality and internal consistency. The estimated tropospheric delays exhibit clear diurnal variations consistent with expected atmospheric conditions. Overall, the findings confirm the reliability of the KITG GNSS station and support.