(Left) Luminosity of the source in the [15-50] keV band in Eddington units, using BAT flux values estimated via WEBPIMMS, compared to actual measurements from INTEGRAL, Suzaku and NuSTAR datasets. (Right) INTEGRAL 30-50 count rates versus 15-50 keV projected fluxes in observations of sufficiently high S/N to perform a fit. Uncertainties on both linear regression regions and coefficients are quoted at a 1 σ confidence level.