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%.