HARDWARE / PRODUCTUpdated 25 Jul 2026

IANUS & PERSEUS Cold Gas Propulsion Systems

T4i - Technology for Propulsion and Innovation
IANUS & PERSEUS Cold Gas Propulsion Systems

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.

Typed specifications12 values

Discloses 5 of 11 fields engineers filter by in this category (category median 3).

Mass
2.5 kg
product page
Specific impulse
40 s
min · product page 40 s min
Total impulse
450 N·s
product page 38 N·s
Propellant
R134a
product page R134a
Supply voltage
12 V
product page
TRL
9
product page 8
Min impulse bit
0.5 mN·s
max · product page 0.5 mN·s max

Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.

As published by the supplier32 lines, in the manufacturer's own wording
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.

Source: www.t4innovation.com ↗

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