value	unc_up	unc_lo	author	ref	method
18.18	nan	nan	Waszczak	2015AJ....150...75W	Lightcurve
18.19	nan	nan	Durech	2023A&A...675A..24D	Model
18.19	nan	nan	Durech	2019A&A...631A...2D	Model
18.19	nan	nan	Erasmus	2020ApJS..247...13E	Lightcurve