Comparison between APOGEE spectra of the star 2M18244689-0620311 (black, normalized using a synthetic spectra with T_eff = 3500 K, log g =4.9 dex and [M/H] = −0.2 dex) and the best-fitting synthetic spectra (red, straight line) for APOGEE wavelength range. In gray, we highlight the areas used for χ² minimization by our pipeline algorithm. The best fitting parameters derived were T_eff = 3507 ± 100 K, log g =4.80 ± 0.2 dex, [M/H] = −0.19 ± 0.1 dex. The available ASPCAP parameters are T_eff = 3600 ± 59 K, log g =5.09 ± 0.12 dex, and [M/H] = −0.06 ± 0.01 dex. This star was characterized in Souto et al. (2020) as having T_eff = 3376 K, log g =4.77 dex, [M/H] = +0.21 dex.