  We apply Monte Carlo projection to the radial velocity data set that Anglada
Escude et al. (2016) use for the discovery of Proxima b. They find an upper
limit to the orbital eccentricity of 0.35. To investigate the eccentricity
issue further, we calculate a suite of monovariate and bivariate densities o
eccentricity. After discarding apparent artifacts at eccentricity = 0 and = 1,
we find that eccentricity has a trimodal sampling distribution: three chimeras
or types of orbit compatible with the RV data set. The three modes or peaks in
the density of eccentricity are located at eccentricity = 0.25, 0.75, and 0.95,
with relative weights 0.79, 0.10, and 0.11. Future RV observations will clarify
which of the three chimeras represents the true eccentricity of Proxima b. The
most-likely estimate is eccentricity = 0.25, and our lower limit is
eccentricity = 0.025. Our strategic, long-term goal is to elevate the orbital
analyses of exoplanets to meet the challenges of sometimes complex probability
density distributions.
