NIR spectrum of G150 (see Appendix A for the rest of the targets). Row 1: 1D spectrum for G150. The black line is a linear fit to I_λ in the region with no skylines (blue strip). The vertical orange strip is the wavelength of the (1 − 0)S(0) line. Row 2: I_sub, int, the spectrum after we subtracted from it the linear fit and integrated over the instrument spectral resolution, Δλ ≈ 7.4 × 10⁻⁴ μm. Row 3: Error (noise) on I_sub, int. Row 4: S/N = I_sub, int/σ. Wavelengths are in vacuum.