MADCASH-1, also known as MADCASH J074238+652501-dw, is a dwarf satellite galaxy orbiting the spiral galaxy, NGC 2403, in the constellation Camelopardalis. It was the first ever discovery from the MADCASH (Magellanic Analog Dwarf Companions and Stellar Halos) survey, in which they're using the Subaru Telescope. The galaxy was confirmed using HST.