IANUS & PERSEUS Cold Gas Propulsion Systems
T4i - Technology for Propulsion and Innovation
IANUS and PERSEUS are flight-proven cold gas propulsion systems designed for CubeSats, offering fine maneuvering capabilities, high leak tightness, and 6 Degrees of Freedom for various in-orbit operations.
Key figurescomparable across the catalogue
- Mass
- 2.5 kg
- Power
- 30 W
- Thrust
- 0.01 N
- Specific impulse
- 40 s
- Total impulse
- 450 N·s
- TRL
- 9
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- D.o.f. (PERSEUS)
- 6
- Thrust [mn] (PERSEUS)
- 10/10/29 mN
- Propellant (PERSEUS)
- R134a
- Power [w] (PERSEUS)
- <30 for valves opening (duration of ms) <20 firing
- Volume [u] (PERSEUS)
- 2.5
- Dry mass [kg] (PERSEUS)
- 2.5 kg
- Voltage [v] (PERSEUS)
- 12 V
- Specific impulse [s] (PERSEUS)
- >40
- Total impulse [ns] (PERSEUS)
- 450
- Minimum impulse bit [mn*s] (PERSEUS)
- <0.5
- Leak rate (PERSEUS)
- <2*10-4 sccsHe
- Operating temperatures [°c] (PERSEUS)
- -10/50 °C
- Pre-firing time [s] (PERSEUS)
- 60
- Electric interface (PERSEUS)
- 12 V DC regulated
- Communications (PERSEUS)
- RS422 protocol HDLC-like
- TRL (PERSEUS)
- 9
- D.o.f. (IANUS)
- 6 (3 for each module)
- Thrust [mn] (IANUS)
- 9/14/30
- Propellant (IANUS)
- R134a
- Power [w] (IANUS)
- <60 for valves opening (duration of ms) <40 firing
- Volume [u] (IANUS)
- 0.5 (per module)
- Dry mass [kg] (IANUS)
- 0.5 (per module)
- Voltage [v] (IANUS)
- 12 (unregulated)
- Specific impulse [s] (IANUS)
- >40
- Total impulse [ns] (IANUS)
- 38 (per module)
- Minimum impulse bit [mn*s] (IANUS)
- <0.5
- Leak rate (IANUS)
- <10-6 sccsHe
- Operating temperatures [°c] (IANUS)
- -10/50
- Pre-firing time [s] (IANUS)
- 60
- Electric interface (IANUS)
- 12 V DC unregulated
- Communications (IANUS)
- RS422 protocol HDLC-like
- TRL (IANUS)
- 8
About
IANUS and PERSEUS are cold gas propulsion systems developed by T4i, utilizing R134a propellant. They are designed for CubeSats and offer 6 Degrees of Freedom (DoF), making them ideal for precise in-orbit maneuvers. Both systems are characterized by their high leak tightness and ability to perform extremely fine maneuvering. PERSEUS has a TRL of 9 and was used in the ASI IPERDRONE.0 mission for inspection and proximity operations on a 6U XL CubeSat. IANUS has a TRL of 8 and is integrated into the Milani 6U XL CubeSat for ESA’s Hera mission, enabling close-proximity operations around the Didymos and Dimorphos asteroid system. Key applications include collision avoidance, reaction wheel desaturation, attitude control, station keeping, formation flying, and general proximity operations.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.