IANUS & PERSEUS Cold Gas Propulsion
T4i - Technology for Propulsion and Innovation
Flight-proven 6 D.o.F. cold gas propulsion systems (R134a) for fine maneuvering, collision avoidance, and proximity operations.
Technical specifications
- Propellant
- R134a
- D.o.F.
- 6 (PERSEUS); 6 using 3 per module (IANUS)
- Thrust
- 10/10/29 mN (PERSEUS); 9/14/30 mN (IANUS)
- Power
- <30 W valve opening / <20 W firing (PERSEUS); <60 W valve opening / <40 W firing (IANUS)
- Dimensions
- 2.5 U (PERSEUS); 0.5 U per module (IANUS)
- Mass
- 2.5 kg (PERSEUS); 0.5 kg per module (IANUS)
- Supply voltage
- 12 V DC regulated (PERSEUS); 12 V DC unregulated (IANUS)
- Specific Impulse
- >40 s (both)
- Total Impulse
- 450 Ns (PERSEUS); 38 Ns per module (IANUS)
- Minimum Impulse Bit
- <0.5 mN*s (both)
- Leak Rate
- <2e-4 sccsHe (PERSEUS); <1e-6 sccsHe (IANUS)
- Operating temperature
- -10 to 50 degC (both)
- Interface
- RS422, HDLC-like protocol
- TRL
- 9 (PERSEUS, flight-proven); 8 (IANUS)
About
IANUS and PERSEUS are T4i’s cold gas propulsion systems, providing up to 6 degrees of freedom using R134a (Freon) propellant, designed for extremely fine maneuvering, high leak-tightness, and flight-proven reliability. They target collision avoidance, inspection, proximity operations, and attitude control for small satellites.
PERSEUS is a single 2.5 U, 2.5 kg module delivering 6 D.o.F. with a total impulse of 450 Ns and TRL 9 flight heritage. IANUS is a modular 0.5 U, 0.5 kg-per-module system (3 D.o.F. per module, 6 D.o.F. with two modules) at TRL 8, with 38 Ns total impulse per module.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.
