VAC02 ADCS

Availability: 24 weeks

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Features

VAC02 is a plug-and-play, fully integrated, versatile Attitude Determination and Control System (ADCS) solution designed for CubeSats with 1U to 6U form factors. It is equipped with three reaction wheels, three magnetorquers as actuators, six sun sensors, plus two magnetometers, and three gyroscopes as sensors. This compact solution with Cortex-M7 computer provides exceptional pointing awareness and performance for smaller CubeSats. VAC02 can be also modified to handle larger form factors (up to 16U).

Technical specification

Properties

Property	Value
Mass	Central unit: 414.4 g, external magnetometer: 9.9 g Total: 424.3 g (including SunSensors and typical harness)
Dimensions	27 x 94 x 94 mm (0.27U)
Pointing precision	Relative (jitter): 0.15° @ 1 σ Absolute (including jitter): 0.45°
Total momentum storage (per axis)	0.6 mN·m·s
Maximum torque (per axis)	0.2 mN·m
Magnetic moment	X,Y: 0.24 Am², Z: 0.17 Am²
Sensors	Internal and deployable 3axis magnetometers 6x sun sensors 3x 3axis MEMS gyroscope
Actuators	3x reaction wheel 3x magnetotorquer
Radiation tolerance	36 krad
Communication interfaces	CAN, I²C, UART CubeSat Space Protocol
Supply voltage	5.0V or 8.0V (based on motor type)
Power consumption	Idle: 375 mW Nominal: 960 mW Peak: 1400 mW

Operational modes

Stand by
B-dot
Inertial pointing
Sun pointing
Nadir pointing
LLA Target tracking (up to 6U form factor)

Qualification (QT) and Acceptance (AT) testing

Functional	QT	AT
Vibration	QT
Mechanical shock	QT
Thermal vacuum cycling	QT

Expected lifetime: 3 years

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