| The Canadian Advanced Nanosatellite eXperiment 2 (CanX-2) is the second is a series of nanosatellites (spacecraft under 10 kg in mass) under development at the UTIAS Space Flight Laboratory. Scheduled for launch in June 2007, CanX-2 will test the enabling technologies needed to support future small satellite missions in formation flying and astronomical observation. Two of these core systems are the on-board computer, for command and data handling, and the radio systems for communication and tracking. On initial deployment in space, the interface between these two systems is provided by the bootloader software. The design of the bootloader and the selection of spacecraft commands are described. Upon deployment, a VHF beacon is used to provided basic spacecraft health information and confirm separation. This signal and other communication with CanX-2 is accomplished through the ground station at UTIAS/SFL; the design of both these systems and their implementation is documented. |
