  Nucleon isovector vector, $g_V$, and axialvector, $g_A$, charges calculated
on a 2+1-flavor dynamical domain-wall-fermions (DWF) ensemble at physical mass
jointly generated by RIKEN-BNL-Columbia (RBC) and UKQCD Collaborations with
lattice cut off of 1.730(4) GeV, are reported with about a percent statistical
errors, along with isovector ``scalar,'' $g_S$, and ``tensor charges,'' $g_T$,
with larger statistical errors. Nucleon mass is estimated as 947(6) MeV. A few
standard-deviation systematics is seen in the vector charge, likely from
$O(a^2)$ discretization error through small excited-state contamination. The
axialvector charge is found with a few to several standard-deviation systematic
deficit, depending on calculation methods, in comparison with the experiment.
Nucleon signal is likely lost as early as 10 lattice units or about 1.1 fm in
time from the source.
