Aurora Resistojet Module for Orbit Control (ARM-O)
Aurora Propulsion Technologies
A modular water-propellant resistojet thruster module for satellite orbit control, designed for collision avoidance and small orbital maneuvers on SmallSats, CubeSats and PicoSats.
Typed specifications28 values
Discloses 7 of 10 fields engineers filter by in this category (category median 3).
- Propulsion family
- electric datasheet p.0 water water resistojet
- Mass
- 1 kg wet mass, ARM-O GEN2 Medium · datasheet p.1 700 g wet mass, ARM-O GEN2 Small | 1 kg wet mass, ARM-O Medium | 700 g wet mass, ARM-O Small
- Thrust
- 20 mN BoL, ARM-O GEN2 Small and GEN2 Medium · datasheet p.1 3 mN BoL, ARM-O Small and ARM-O Medium
- Total impulse
- 250–300 N·s ARM-O GEN2 Medium · datasheet p.1 120–150 N·s ARM-O GEN2 Small | 200–250 N·s ARM-O Medium | 90–120 N·s ARM-O Small
- Propellant
- water datasheet p.0
- Data interface
- RS-422 digital control interface; alternatively direct electrical in… · datasheet p.1 CAN digital control interface; alternatively direct electrical in…
- Lead time
- 9–12 months ARM-O GEN2 Small / GEN2 Medium · datasheet p.1 4–9 months ARM-O Small / ARM-O Medium
- Thruster technology
- warm gas or resistojet resistojet utilizing water propellant · datasheet p.1
- Thrusters in the unit
- 2 datasheet p.1
- Volume
- 1 U ARM-O GEN2 Medium · datasheet p.1 0.6 U ARM-O GEN2 Small | 1 U ARM-O Medium | 0.6 U ARM-O Small
- Time to thrust
- 2 s response time, nominal mode · datasheet p.1 60 s preheat
- Flight heritage
- IOD 2026 product page
- Satellite class
- CubeSat CubeSat propulsion system · datasheet p.1
- Thrust vector control
- none (fixed) Thruster heads adjusted toward centre-of-mass · datasheet p.1
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 supplier7 lines, in the manufacturer's own wording
- Thrust-to-power need
- 10x more than FEEP
- Specific impulse
- 2x compared to cold gas
- Propulsion safety
- Safe and reliable propulsion
- Flight heritage / iod
- IOD 2026
- Applicable platforms
- SmallSats, CubeSats, PicoSats
- Propellant
- Water (resistojet, multiple propellant options supported)
- Thruster mass
- About 1 gram per thruster
About
The ARM-O (Aurora Resistojet Module for Orbit Control) is part of Aurora’s water resistojet thruster product family. It uses a resistojet thruster designed primarily for water propellant but capable of supporting multiple propellant options; the thruster itself weighs about a gram, enabling complex multi-thruster configurations even on CubeSats. ARM-O is intended to give satellite operators control for collision avoidance and small orbital maneuvers, with an efficient and compact system delivering reliable propulsion for precise control and extended mission capabilities. It is aimed at SmallSats, CubeSats and PicoSats. Per the manufacturer, it offers ten times more thrust-to-power need compared to FEEP (Field Emission Electric Propulsion) thrusters and double the specific impulse compared to cold gas propulsion, while being described as a safe and reliable propulsion solution. Like other Aurora products, it is designed with modularity in mind, allowing low-cost off-the-shelf solutions as well as extensively customized solutions for specific use cases, and is positioned as supporting sustainable, orbit-maintenance-driven fleet return-on-investment. An In-Orbit Demonstration (IOD) is planned for 2026.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.