value unc_up unc_lo author ref method 1.0700e+19 nan nan Folkner 2014IPNPR.196C...1F Ephem 1.2000e+19 4.9000e+18 4.9000e+18 Zielenbach 2011AJ....142..120Z Deflec 1.9700e+19 7.6300e+18 7.6300e+18 Zielenbach 2011AJ....142..120Z Deflec 4.3900e+18 7.1800e+18 7.1800e+18 Zielenbach 2011AJ....142..120Z Deflec 4.9000e+18 nan nan Folkner 2009IPNPR.178C...1F Ephem 5.8040e+18 1.3930e+18 1.3930e+18 Fienga 2017NSTIM.108.....V Ephem 6.2360e+18 1.3050e+18 1.3050e+18 Fienga 2020MNRAS.492..589F Ephem 9.3200e+18 5.0000e+18 5.0000e+18 Zielenbach 2011AJ....142..120Z Deflec 9.7100e+18 6.9600e+17 6.9600e+17 Fienga 2009A&A...507.1675F Ephem