The Ghotor doublet earthquake happened on 23 Feb 2020 in west Azerbaijan province of Iran near Iran-Turkey border. The first large event with a magnitude of 5.8 Mw happened at 5:52 UTC and followed by a second large event of magnitude 6.0 Mw at 16:00 UTC. In this study, we use the result of the interferometry processing as observations to derive the fault geometry and slip distribution along the fault. The two step modeling used to estimate the geometric parameters and slip distribution of the fault from the interferograms. We modeled the earthquake as a single rectangular dislocation in an elastic half space. The calculated optimal model parameters illustrate a northeast-striking (N24°) left-lateral rupture plane dipping ~86° towards the west. In the second step, to determine the distributed slip model, we considered fixed fault geometry that resulted from the uniform slip modeling. Using constraints acquired from the constant slip modeling, we model the rupture plane geometry using a distributed slip modeling. The coseismic rupture concentrates around a center depth of 3 km with a maximum slip of 97±8 cm. According to the distributed slip modeling, the mainshock occurred on a NE-striking fault plane dipping toward the west. Assuming a rigidity modulus of 30 GPa, the geodetic moment is estimated to be 1.517E+18 Nm, equivalent to a moment magnitude of 6.05 Mw.