We present the MOA Collaboration light curve data for planetary microlensing event OGLE-2015-BLG-0954, which was previously announced in a paper by the KMTNet and OGLE Collaborations. The MOA data cover the caustic exit, which was not covered by the KMTNet or OGLE data, and they provide a more reliable measurement of the finite source effect. The MOA data also provide a new source color measurement that reveals a lens-source relative proper motion of $\mu_{ \rm rel} = 11.8\pm 0.8\,$mas/yr, which compares to the value of $\mu_{ \rm rel} = 18.4\pm 1.7\,$mas/yr reported in the KMTNet-OGLE paper. This new MOA value for $\mu_{ \rm rel}$ has an a priori probability that is a factor of $\sim 100$ times larger than the previous value, and it does not require a lens system distance of $D_L < 1\,$kpc. Based on the corrected source color, we find that the lens system consists of a planet of mass $3.4^{ +3.7}_{ -1.6} M_{ \rm Jup}$ orbiting a $0.30^{ +0.34}_{ -0.14}M_\odot$ star at an orbital separation of $2.1^{ +2.2}_{ -1.0}\,$AU and a distance of $1.2^{ +1.1}_{ -0.5}\,$kpc.
Categories: astro-ph.EP