Space Inventor 3U Satellite
Flight proven TRL9
State of the art report 2023

3U Satellite

Our cutting-edge 3U CubeSat platform, engineered with modular subsystems for adaptability to diverse mission objectives. 

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Mission example

- Target satellite for rendezvous - Student HAM satellite - VHF/UHF communication - Earth observation





Our cutting-edge 3U CubeSat platform, engineered with modular subsystems for adaptability to diverse mission objectives. Crafted with a keen focus on efficiency and reliability, this compact satellite solution features a groundbreaking design that reduces part numbers while enhancing accessibility to internal systems for seamless integration.

Our 3U CubeSat platform upholds the highest standards of analysis, design, and testing, ensuring exceptional performance in space missions. Prioritizing reliability and performance, the platform integrates shielded, high-reliability subsystems including batteries, power distribution, communication, and attitude control.

Each subsystem is fortified with dedicated radiation shielding, electromagnetic interference (EMI) shielding, thermal management mechanisms, and robust mechanical support. The streamlined integration process ensures rapid operational readiness, making it an optimal choice for missions requiring efficiency and adaptability in a compact form factor.

Experience unmatched reliability, performance, and efficiency with our state-of-the-art 3U CubeSat platform, tailored to meet the exacting demands of modern satellite missions.


Payload Mass (Kg)
1 - 4 kg
Payload Volume
Payload power peak
100 W
Reaction wheels
50 mNms
Battery Capacity
100 Whr
Data Buses
Redundant CAN / Ethernet / SpaceWire
On-Board computer
Redundant Cortex-M7 /redundant Zync-7030
Bus provided redundant user data storage
Up to 64 GB
ADCS Pointing accuracy adv. option 1
Down to 5 arcsec
ADCS sensors
6 Fine sun sensors, 1 star tracker, 2 gyros
Primary communications
S band 4 Mbps
High Speed links
2 x S/X band 4 - 200 Mbps
Fully customizable to meet mission requirements
Capable of meeting pointing requirements for Earth Observation
Suitable for HAM payloads such as VHF/UHF transponders
Safe decommissioning: Atmosphere disposal protocol

Mechanical drawing

Space Inventor 3U CubeSat Blueprint

Available modules in satellite

Space Inventor Momentum Wheel 1000

Momentum Wheel

Space Inventor presents high-performance momentum wheel units, meticulously designed for microsatellite missions with mission lifetimes of up to 5 years.
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Space Inventor IMU


Inertial Measurement Unit with integrated gyroscope, accelerometer and magnetometer for satellites. 

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Space Inventor Magnetorquer


The MT-P4 magnetorquer rod is an integrated solution designed for momentum dumping of LEO satellites.
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Space Inventor Star Tracker


Star Tracker unit for mini- and microsatellites.

The star tracker is based on advanced star-tracking algorithms developed by Space Inventor. The embedded computer processing unit is built on highly reliable COTS components. The compact rad-hard camera’s optics collect enough signal to track across the entire celestial vault with full performance up to 0.3º/s. 

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Space Inventor Fine Sun Sensor

Fine Sun Sensor

The highly integrated fine sun sensor uses four photodiodes to estimate the sun direction vector with a precision of 1º.
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Space Inventor On-Board Computer


The OBC-P4 is an onboard computing platform consisting of four independent ARM Cortex-M7 modules, each with separate power supply, interfacing, and storage.
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