BeiDou Satellite Radiation Force Models for Precise Orbit Determination and Geodetic Applications

China's BeiDou satellite navigation system (BDS) has completed its full constellation in orbit since June 2020. Services have been evolved from regional (BDS-2) to global (BDS-3). This contribution evaluates the impact of solar radiation pressure (SRP) modeling on orbits and geodetic parameters. To that end, we process 2 years BDS observations (2019-2021), collected by a network 100 ground stations. A physical priori box-wing model based estimated optical properties is introduced. Various effects, such as radiator emission thermal panels are considered. The ECOM (Empirical CODE Model), ECOM+along-track ECOM2 models employed top experiment. We show without use model, shows clear better solutions during eclipse seasons for BDS-3 satellites. proven be mainly due panels. However, along-track acceleration highly correlated with LOD (length day) estimates this case contaminated. When using orbital errors greatly reduced all models. For instance, misclosures CAST (China Academy Space Technology) satellites improve factor two seasons. Furthermore, mitigates great majority spurious signals