Normally, three gyroscopes are required for operation; observations are still possible with two, but the area of sky that can be viewed would be somewhat restricted, and observations requiring very accurate pointing are more difficult.. 
Oobatse Khama, (1 July 1921 13 July 1980) je oloselu ara orile-ede Botswana ati Aare ile Botswana akoko ni odun 1966 titi di ojo to di alaisi ni ojoketala osu keje odun 1980.Awon ara botswangne Aare ile Botswana.. 