8 cm

23.5 cm

15 cm

8.1 cm

9.4 cm

11.5 cm

10.5 cm

9.5 cm

2 cm

10 cm

7.5 cm

The Aurora Hall-effect Propulsion System

The Orbion Aurora is a fully integrated Hall-effect propulsion system, comprised of a magnetically shielded thruster for ultra-long life and high total impulse, power processing unit, propellant management assembly, harness assembly, and storage tank.

* Not shown: Propellant Plumbing and Propellant Tanks

Power Processing Unit

23.5 cm x 15 cm x 8 cm

  • 90% efficient
  • 24 – 35 V S/C Bus input
  • RS-422 Interface
    • Other interfaces available upon request
  • Total Ionizing Dose (TID) Options
    • Pathfinder (5 krad TID)
    • Constellation (25 krad TID)
    • Cislunar (>100 krad TID)
  • 2.9 kg

Dimensional Reference

8.1 cm x 9.4 cm

  • 0 – 100 °C working temperature
  • All ceramic material
  • Rated for coffee, tea, or large espresso
  • Cool Orbion logo
  • Holds 350 g of liquid water, or 700 g of xenon at storage pressure

Hall-effect Thruster

10.5 cm x 9.5 cm x 11.5 cm

  • Continuously throttleable from 100 – 300 W
  • Xenon or Krypton
  • Magnetically shielded
  • Patent-pending ZeroTorque design has zero magnetic moment, so no perturbing magnetic torque on your spacecraft in LEO
  • 1.5 kg

Propellant Management Assembly

10 cm x 7.5 cm x 2 cm

  • Available exclusively from Orbion
  • Interfaces directly with storage tank
  • 1 anode, 1 cathode flow output line
  • Proportional flow control – fully throttleable
  • No direct interface necessary with spacecraft CDH
  • Driven by PPU circuitry and software
  • 50 mW
  • 500 g

Harness Assemblies

Multiple lengths available to fit any packaging/routing need

Aurora system physical specifications

The spacecraft interface is simple: A 28-volt unregulated power connection and an RS-422 data connection. We can either provide propulsion system components separately so you can locate them as desired within your spacecraft volume, or we can integrate the complete system on an element of spacecraft structure you provide.

Dimensions (HET Envelope)10.5 x 9.5 x 11.5cm
Dimensions (PPU)23.5 x 15 x 8cm
Dimensions (PMA)10.0 x 7.5 x 2cm
PPU Input Voltage24-35V
PPU Data Interface**RS-422

* Not including propellant and tank

** Other options available

Design Philosophy

Decades of laboratory testing and in-space heritage have proven that Hall-effect thrusters (HETs) possess an unrivaled combination of high thrust, specific impulse, and reliability. The Orbion Aurora is the next step in Hall-effect technology. Aurora was designed from the ground-up to be an affordable, reliable, mass-producible product. We didn’t just design a new thruster—instead, we designed an entirely new process.

The Orbion Aurora is not a laboratory technology—it’s a workhorse product you can trust for your in-space maneuvers. You can count on our Aurora system to:

Maximize performance.

Class-leading thrust-to-power of over 60 mN/kW combined with 1,400 seconds of specific impulse reduces maneuver time, as well as propulsion system wet mass allowing you to carry more payload.

Achieve results.

With the Aurora, we build on proven technology while pushing the state of the industry within practical measures. You can be assured that Aurora will not interfere with the important functions of your spacecraft.  No RF noise.  No spacecraft contamination.  Just thrust when you need it – every time.

Benefits of Aurora

When compared to other products and technology currently available, the Aurora Hall-effect Propulsion System is the clear choice.


The Aurora system is manufactured using modern automation, with robots and automated test facilities replacing small teams of lab technicians in white coats. Our manufacturing process can produce one to two units per run, or 1,000 units per run—all of them enjoying the same low price and high reliability.

Based on proven technology

High-capacity manufacturing

Reduced launch payloads


System reliability

Aurora System Specifications

Download a data sheet describing Aurora system performance and interfaces.


Configure a system for your mission

Our real-time Configurator tool can calculate the total propulsion system wet mass, tank dimensions, maneuver time, and other metrics based on your mission requirements.  After selecting your specifications you can instantly download presentation-ready slides with detailed dimensions and a 3D pdf solid model showing the Aurora configuration that meets your needs.

Configure your propulsion system

Hall-effect thrusters are the most trusted electric propulsion technology in the industry.  See how they compare with other options.

Learn about our technology

Orbion’s propulsion systems are manufactured using an optimal mix of touch labor and robotic assembly to increase reliability and decrease cost.

Learn about our manufacturing

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