Ireland, MichaelWhite, MarcBento, JoaoFarrell, TonyLabrie, KathleenLuvaul, LanceNielsen, Jon G.Simpson, Chris2019-01-022019-01-0297815106196789.78151E+12http://hdl.handle.net/1885/154842The data reduction software for the Gemini High Resolution Optical SpecTrograph (GHOST) presents a number of unusual challenges. Star light from one or two objects and simultaneous sky is collected in integral field units rather than a slit or well-separated fibers. When used with binning, individual fibers are not resolved, and the optimal pixel weighting is derived from a simultaneous slit viewing camera. We describe the data reduction approach taken, including testing using an optical physics-based data simulator, and an object-oriented and modular approach to spectral extraction that fits within the Gemini recipe system, DRAGONS, using AstroConda.application/pdf© 2018 Society of Photo-Optical Instrumentation Engineers (SPIE).201810.1117/12.2314418