value unc_up unc_lo author ref method 5.30 nan nan Behrend LCDB Lightcurve 5.31 nan nan Waszczak 2015AJ....150...75W Lightcurve 5.31 nan nan Durech 2020A&A...643A..59D Model 5.31 nan nan Polishook 2012MNRAS.421.2094P Lightcurve