value	unc_up	unc_lo	author	ref	method
1.3800e+18	nan	nan	Folkner	2009IPNPR.178C...1F	Ephem
1.6143e+18	3.4627e+17	3.4627e+17	Fienga	INPOP19a	Ephem
2.7401e+18	6.5620e+17	6.5620e+17	Fienga	2013arXiv1301.1510F	Ephem
3.1340e+18	4.6200e+17	4.6200e+17	Fienga	2017NSTIM.108.....V	Ephem
3.7400e+18	nan	nan	Folkner	2014IPNPR.196C...1F	Ephem
6.3763e+18	3.7432e+17	3.7432e+17	Fienga	inpop13c	Ephem
6.3800e+18	3.7400e+17	3.7400e+17	Fienga	2014arXiv1405.0484F	Ephem