Notes. Shown are the absorption wavelength in air, the zero-point solar abundance of the line in LTE and non-LTE, the log(gf), the excitation energy, parameters for broadening due to elastic hydrogen collisions, and the quality classification from Heiter et al. (2020), where ‘Y’ is clean, ‘U’ is uncertain, ‘N’ is not clean (blended), and ‘–’ was not tested. Oscillator strengths are from Lawler et al. (2013) and Wood et al. (2013) for Ti I and Ti II, respectively. Positive broadening parameters are from ABO theory (Barklem et al. 2000); the value before the decimal point represents the collisional cross-section σ at 10 km s⁻¹, and the value after the decimal point the velocity parameter α. Negative values are a logarithm of full width half maximum per unit perturber number density at 10 000 K. Solar abundances for each line are from Buder et al. (2021) in LTE, and with the non-LTE effect added for the Sun from Fig. 7. Isotopic splitting was accounted for when data were available in VALD (Ryabchikova et al. 2015), (line 5739.47).