MicroLabSat is a 50(kg) class micro satellite that was launched on December I4, 2002. MicroLabSat switches attitude control modes according to the operation mode. In the nominal operation mode, spin-stabilized control is used. In the mission mode, three axis control is used. MicroLabSat carries only simple low cost sensors for attitude determination. This paper describes design and development of the MicroLabSat attitude control system.
