value	unc_up	unc_lo	author	ref	method
1.3220e+18	3.8400e+17	3.8400e+17	Fienga	2017NSTIM.108.....V	Ephem
1.5300e+18	nan	nan	Folkner	2009IPNPR.178C...1F	Ephem
1.6540e+18	4.8100e+17	4.8100e+17	Fienga	2020MNRAS.492..589F	Ephem
2.4500e+18	7.4400e+17	7.4400e+17	Fienga	2011CeMDA.111..363F	Ephem
2.4700e+18	nan	nan	Folkner	2014IPNPR.196C...1F	Ephem
3.0307e+18	9.0129e+17	9.0129e+17	Fienga	inpop13c	Ephem
3.0300e+18	9.0100e+17	9.0100e+17	Fienga	2014arXiv1405.0484F	Ephem
3.2790e+18	8.7493e+17	8.7493e+17	Fienga	2013arXiv1301.1510F	Ephem