Data used for fitting (dark blue symbols with error bars), compared with the best-fitting model of neutral helium flux observed by IBEX-Lo (green line), being a sum of fluxes from the NIS He gas (orange) and Warm Breeze populations (cyan). The data and the model are scaled to their respective peak values for orbit 64. Gray symbols represent raw data without background subtracted. Red points represent the data used by Bzowski et al. (2012) in the analysis of NIS He flow. The data for orbit 69 were not used in the fitting of the Warm Breeze in this work and by Bzowski et al. (2012) in the fitting of NIS He.