iACS200 Series Attitude Control Systems

The iACS200 series attitude control systems are low power, fully integrated attitude control systems, aimed at small satellites with a 3U CubeSat form factor or similar. The standard version of the iACS200 integrates three MTQ200 series magnetorquers and offers interfaces for six (external) sun-sensors, allowing for different-pointing modes.

The iACS200 can be equipped with three of Hyperion Technologies’ RW210 series reaction control wheels offering up to 6.0 mN.m.s of angular momentum storage per axis.

The iACS200 features an internal fire-and-forget controller, which frees up the host processor’s workload, providing pointing and de-tumbling modes.

The iACS200 is delivered with a PC104-compatible footprint, consuming the space of 2 standard CubeSat PCB’s, or a total of 0.3 U. The CubeSat connector is fed through, allowing designers to place this system anywhere in their CubeSat stack.

Highlights

• Fully integrated attitude determination and control system, including three MTQ200-series magnetorquers and built-in IMU and magnetometer

• Three-axis magnetorquer configuration with up to 0.4 A.m² of magnetic dipole moment

• External interface for 6 or more external sun-sensors

• Fire-and-forget control

• Standard I2C-compatible interface.RS422, RS485 and CAN1 interfaces are optional

• Plug-and-play ready design

• Primary components passed radiation tolerance testing up to 45 krad

• Fire-and-forget control

• Standard I2C-compatible interface.RS422, RS485 and UART are optional

• Plug-and-play ready design

• Primary components passed radiation tolerance testing up to 45 krad

• Optionally: three RW210 series reaction wheels with +/- 1.5, +/- 3.0, +/- 6.0 mN.m.s maximum storage

• Low mass：260 g

• Low power：(nominal) < 600 mW

• Outer dimensions：95.1 x 90.3 x 32 mm

Specifications

Performance:

 · Total momentum storage per axis：+/- 1.5, +/- 3.0, +/- 6.0 mN.m.s

 · Maximum torque：2 mN.m

 · Nominal magnetic moment：0.2 (X, Y), 0.1 (Z) A.m2

 · Boost mode dipole moment：1 (X, Y), 0.25 (Z) A.m2

 · Pointing accuracy：< 15 °

 · Slew rate：> 1.5⁶ °/s

 · Radiation tolerance：> 45 krad (Si)

 · Operating temperature：- 45 to + 85 (- 40 to + 60) °C

Dimensions：

 · Outer dimensions：95.1 x 90.3 x 32 mm

 · Mass：260 (340 to 410) g