EVA is a next-generation Attitude Determination and Control System (ADCS) designed for 6U to 16U CubeSats, delivering exceptional precision with a pointing accuracy of ±50 arcseconds (1σ). Engineered for high-performance CubeSat missions, this compact system integrates advanced sensor fusion algorithms with on-board guidance and control to achieve precise attitude knowledge and control.
Basic Properties
Property | Value |
Sensors | Up to 6x Fine Sun Sensors, MEMS gyroscope, Magnetometer, 1x Star Tracker |
Actuators | 3x magnetorquer, 3x or 4x reaction wheel |
Momentum Storage | 30 mN·m·s (per wheel) |
Max Torque | 2 mN·m (per wheel) |
Slew Rate | Typically 5 deg/s (12U CubeSat) |
Pointing accuracy (XY/Z) | 50/71 arcsec 1 sigma |
Knowledge accuracy (XY/Z) | 10/50 arcsec 1 sigma |
Dimensions | 2U (1U for Star Tracker, 1U for Computer and Reaction wheels) |
Mass | 1.5 kg (including RW and Star Tracker) |
Interface | CAN, RS-485, Ethernet, Cubesat Space Protocol |
Magnetic Moment | 1.0 Am2 (per axis) |
Power Consumption | Idle: 2.5W, Nominal: 6W, Peak: 16.5 W |
Supply Voltage | 12V |
Equipped with a state-of-the-art star tracker and a range of sensors and actuators, the system offers fine maneuverability, autonomous momentum management, and fault recovery capabilities. Designed for seamless integration, EVA supports CAN, RS-485, and Ethernet interfaces, ensuring compatibility with a wide range of onboard computers.
With industry-leading accuracy and robust software algorithms, this ADCS is the ideal solution for CubeSat missions requiring high-precision pointing for Earth observation, communication, and scientific applications.