value	unc_up	unc_lo	author	ref	method
15.12	nan	nan	Schmidt	2007LPI....38.1859S	Lightcurve
15.16	nan	nan	Waszczak	2015AJ....150...75W	Lightcurve
21.33	nan	nan	Chang	2015ApJS..219...27C	Lightcurve