8.2.5                 Outer magnetosphere

a.              For assessment of surface charging, the worst­case environment listed in Table 8‑1 shall be used as input to a spacecraft charging simulation or calculation, applicable to the outer magnetosphere environment.

NOTE              This is a dynamic region in terms of plasma density and temperature and for most engineering purposes, worst­case environments are the most important consideration. See Annex H.3.4 for typical plasma parameters in this region.