Examples of simulated R  =  4000 spectra for J  =  21.25, 22.25, and 23.25 (with seeing of , ZD  =  35°, and the “good” NGS configuration). Upper panel: solar metallicity simulations (log  [Z]   =  0.0); lower panel: metal-poor simulations (log  [Z]   =   −1.0). Identified lines, from left-to-right by species, are: Ti i λλ1.1896, 1.1953 μm; Si i λλ1.1988, 1.1995, 1.2035, 1.2107 μm; Mg i λλ1.1831, 1.2087 μm; Fe i λλ1.1597, 1.1611, 1.1641, 1.1693, 1.1783, 1.1801, 1.1887, 1.1976 μm. Residuals from the sky OH lines can be seen in places, e.g. the emission “spikes” in the simulated metal-poor spectrum for J  =  23.25.