ZRPT ewepụghị otu axis anyanwụ nsochi usoro na tilted modul bụ ngwakọta nke ewepụghị otu axis anyanwụ nsochi usoro na tilted otu axis anyanwụ nsochi usoro. O nwere otu axis dị larịị na-enyocha anyanwụ site n'ọwụwa anyanwụ ruo ọdịda anyanwụ, yana modul anyanwụ arụnyere na akụkụ 5 – 10 gbatịrị agbatị. Ọ dabara adaba maka mpaghara ọkara na elu latitude, kwalite ike gị site na ihe dịka 20%.