value	unc_up	unc_lo	author	ref	method
1.5200e+18	6.3900e+17	6.3900e+17	Zielenbach	2011AJ....142..120Z	Deflec
2.0400e+18	2.7500e+18	2.7500e+18	Zielenbach	2011AJ....142..120Z	Deflec
3.0400e+18	nan	nan	Folkner	2014IPNPR.196C...1F	Ephem
7.1569e+17	3.5378e+17	3.5378e+17	Fienga	INPOP19a	Ephem