A high-resolution infrared spectral survey of 103P/Hartley 2 on the night of the EPOXI closest approach

► Reports the most complete high-resolution infrared survey of a Jupiter-family to date. ► Reports rest frequencies, line fluxes, line signal-to-noise ratios and line widths for all detected emissions in the spectrum of 103P/Hartley 2. ► Makes a spectral comparison between three chemically distinct Jupiter-family comets. ► Determines characteristics of unidentified emissions in the survey.