Participating the CanSat project we are now developing a CanSat (350ml, 350g) and an OpenClass (φ150, h300, 1.8kg), which will be launched at Black Rock, Nevada in this August. The CanSat project is a collaborative effort between students and faculty at several educational institutions, to build, launch, test and recover prototype satellites. Mission of our OpenClass is navigating an OpenClass to a predetermined location by itself using GPS stand alone positioning and data from an electric-compass and a pressure sensor while conducting experiments on two components of our CubeSat. These are a sun sensor module and an antenna deployment mechanism, both of which we have been developing to install in our CubeSat 'CUTE-I' scheduled to be launched in May 2002 from Baikonour Cosmodrome, Kazakhstan on a Russian rocket, DNEPR. Mission of our CanSat is acquiring images by using the sun sensor module modified to be able to output raw images taken by a CMOS camera in the module.