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We report the discovery of MOA-2013-BLG-220Lb, which has a super-Jupiter massratio $q=3.01\pm 0.02\times 10^{-3}$ relative to its host. The proper motion,$\mu=12.5\pm 1\, {\rm mas}\,{\rm yr}^{-1}$, is one of the highest formicrolensing planets yet discovered, implying that it will be possible toseparately resolve the host within $\sim 7$ years. Two separate lines ofevidence imply that the planet and host are in the Galactic disk. The planetcould have been detected and characterized purely with follow-up data, whichhas important implications for microlensing surveys, both current and into theLSST era.

MOA-2013-BLG-220Lb: Massive Planetary Companion to Galactic-Disk Host