Model independent estimation of the cosmography parameters using cosmic chronometers

Measurement of the universe expansion rate through cosmic chronometers proves to be a novel approach understanding history. Although it provides direct determination Hubble parameters at different redshifts, suffers from underlying systematic uncertainties. In this work, we analyze recent chronometer data with and without uncertainties investigate how they affect results. We perform our analysis in both model-dependent independent methods avoid any possible model bias. approach, consider $\Lambda$CDM, wCDM CPL models. On Other hand, since Gaussian process unique tool study including non-diagonal covariance matrix, model-independent is based on process.