What planet does Aubrey Altman come from?

Aubrey Altman is the protagonist of the Japanese special TV series Ultraman Orb. His body was hidden in the top of the warrior mountain of O-50 planet with a halo attitude a long time ago, waiting for qualified outstanding soldiers to get Aubrey rapier and gain their own strength. In the end, a young soldier named Kai succeeded in obtaining the Ober rapier, gained the power of light and became Ober Altman's human body. Kay and Jugglus Juggler are best friends and rivals at the same time.