The satellite VELOX-I is the first milestone project of NTU Undergraduate Satellite Program (USP). VELOX-I consists of two satellites: a nano-satellite N-Sat and a pico-satellite P-Sat. N-Sat is developed to be a robust satellite bus for future missions, and P-Sat is an experimental design to carry a scientific payload.

VELOX-I mission includes demonstrating high-resolution vision subsystem, testing a MEMS-based attitude determination and control system, verifying intersatellite RF link, and performing quantum physics experiment.

During the first 6 months in orbit, N-Sat carries out its preliminary mission, while P-Sat remains attached. N-Sat will subsequently be commanded to release P-Sat, and the satellite pair will continue with advance missions for another 18 months before decommissioning.

VELOX-I’s satellites have essential subsystems for handling data (OBDH), distributing power (PWRS), controlling attitude (ADCS), communicating to ground station (COMM), plus vision and scientific payloads.

Satellite under vibration test	Attitude determination system comprises dual redundancy of MEMS IMU & GPS	Power supply system with fault redundancy and peak power tracking capability
Testing of attitude control system on an air bearing setup	Satellite under vacuum chamber test	Structure of VELOX-I