Accretion rate constrained by the use of Eddington luminosity and X-ray luminosity. The green vertical line and light green shading denote our single epoch BH mass estimate and 68% confidence interval using an SDSS spectrum fitted with X-Shooter SSP models and the Cho et al. (2023)R_Hα(L_Hα) relation. The blue horizontal line and light blue shading correspond to the X-ray derived bolometric luminosity adopting the M_BH-based bolometric correction equation and 0.35 dex intrinsic 68% scatter from Duras et al. (2020). The purple line indicates the simulated bolometric correction derived in this work as the extension of the works by Netzer (2019) and Slone & Netzer (2012). Monte Carlo sampling was used for error propagation, incorporating all reported uncertainties on the relation coefficients and inner scatters. In the BH mass interval, the uncertainties of bolometric luminosities are characterized by 68% confidence intervals for the corresponding values. Luminosities are calculated assuming z = 0.038, H₀ = 70 km s⁻¹ Mpc⁻¹.