The direction of maximum radiation of any earthward beam intended for less than global coverage must be capable of being held within 10 percent of the half-power beamwidth or 0.3 degree, whichever is greater, relative to nominal (22.19), with the rule for non-symmetrical beams in 22.20; the accuracy must be maintained where needed to avoid unacceptable interference to other systems (22.21).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.