Keck/NIRSPEC K-band spectra of TOI-2267 around 2.3 μm. Top: observed NIRSPEC spectrum in the nodding position A (shown with the black line) with the data noise in the grey-shaded region. The stellar models with and without telluric absorption features are indicated with the blue and green lines, respectively. The residual (data – model) is denoted with the magenta line. Bottom: same as the top panel for NIRSPEC spectra and model fit but in the nodding position B.