The graph 0.009807*6371*(1-e^(-x/63.71)+0.00162*1737*(e^(-384400/1737))-e^(x/17.37-384400/1737)) shows that beside a zero at x=0 there is another minimum GPE point at x = Orbs, as expected. This suggests that Orbs, the orbital distance of the Moon, can be calculated.