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In this paper, we present the analysis of the binary gravitationalmicrolensing event OGLE-2015-BLG-0196. The event lasted for almost a year andthe light curve exhibited significant deviations from the lensing model basedon the rectilinear lens-source relative motion, enabling us to measure themicrolens parallax. The ground-based microlens parallax is confirmed by thedata obtained from space-based microlens observations using the {\it Spitzer}telescope. By additionally measuring the angular Einstein radius from theanalysis of the resolved caustic crossing, the physical parameters of the lensare determined up to the two-fold degeneracy: $u_0<0$ and $u_0>0$ solutionscaused by the well-known "ecliptic" degeneracy. It is found that the binarylens is composed of two M dwarf stars with similar masses $M_1=0.38\pm 0.04\M_\odot$ ($0.50\pm 0.05\ M_\odot)$ and $M_2=0.38\pm 0.04\ M_\odot$ ($0.55\pm0.06\ M_\odot$) and the distance to the lens is $D_{\rm L}=2.77\pm 0.23$ kpc($3.30\pm 0.29$ kpc). Here the physical parameters out and in the parenthesisare for the $u_0<0$ and $u_0>0$ solutions, respectively.

OGLE-2015-BLG-0196: Ground-based Gravitational Microlens Parallax Confirmed By Space-Based Observation