value unc_up unc_lo author ref method 5.17 nan nan Waszczak 2015AJ....150...75W Lightcurve 5.17 nan nan Pal 2020ApJS..247...26P Lightcurve 5.17 nan nan McNeill 2019ApJS..245...29M Lightcurve 5.17 nan nan Warner 2011MPBu...38...25W Lightcurve