  We report "ground truth", 28-3500 keV in-situ ion and 5.2-55 keV remotely
sensed ENA measurements from Voyager 2/Low Energy Charged Particle (LECP)
detector and Cassini/Ion and Neutral Camera (INCA), respectively, that assess
the components of the ion pressure in the heliosheath. In this process, we
predict an interstellar neutral hydrogen density of ~0.12 cm-3 and an
interstellar magnetic field strength of ~0.5 nT upstream of the heliopause in
the direction of V2, i.e. consistent with the measured magnetic field and
neutral density measurements at Voyager 1 from August 2012, when the spacecraft
entered interstellar space, to date. Further, this analysis results in an
estimated heliopause crossing by V2 of ~119 AU, as observed, suggesting that
the parameters deduced from the pressure analysis are valid. The shape of the
>5.2 keV ion energy spectra play a critical role towards determining the
pressure balance and acceleration mechanisms inside the heliosheath.
