value	unc_up	unc_lo	author	ref	method
4.7000e+17	2.0400e+17	2.0400e+17	Fienga	2020MNRAS.492..589F	Ephem
1.6400e+17	7.8100e+17	7.8100e+17	Fienga	2014arXiv1405.0484F	Ephem
4.6700e+17	nan	nan	Folkner	2014IPNPR.196C...1F	Ephem
6.9597e+17	2.7839e+17	2.7839e+17	Fienga	2013arXiv1301.1510F	Ephem