Co-aligning the EIS flare data from 9 March 2012 with AIA images

For the article "The Temperature and Density of a Solar Flare Kernel Measured from Extreme Ultraviolet Lines of O IV," submitted to The Astrophysical Journal, it was necessary to co-align a Hinode/EIS raster image with SDO/AIA images. This document explains how this alignment was done.