9.7 cm

26.8 cm

19.6 cm

9.2 cm

16.7 cm

9.8 cm

1.6 cm

16 cm

8.8 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

26.8 cm x 19.6 cm x 9.7 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)
  • 5.8 kg

Hall-effect Thruster

9.2 cm x 9.8 cm x 16.7 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

16 cm x 8.8 cm x 1.6 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
  • 700 g

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)9.2 x 9.8 x 16.7cm
Dimensions (PPU)26.8 x 19.6 x 9.7cm
Dimensions (PMA)16.0 x 8.8 x 1.6cm
PPU Input Voltage24-35V
PPU Data Interface**RS-422

* Not including propellant and tank

** Other options available

ProductAttributesTypical ApplicationCollision Avoidance
AuroraAEC-grade passive with space-rated PEM active components where appropriateMissions where cost is driving requirementAvailable with El Matador
Aurora HDAEC-grade passive with QML/QPL ceramic active componentsMissions where reliability is driving requirementAvailable with El Matador
Aurora HDXQML/QPL passive with QML/QPL ceramic active components having > 100 krad TIDMissions in MEO, GEO, or xGEO where reliability and TID are driving requirementsAvailable with El Matador

Product Variants

Orbion offers a full spectrum of Aurora system variants to meet your mission requirements and your budget. All variants feature the same Hall-effect thruster and propellant management assembly, have identical propulsive performance (e.g. specific impulse, thrust, and lifetime), and identical size, weight, and power. The differences are manifested in certain electronic components within the PPU. The Aurora base model is the most economical, while the HDX version features electronic components with best-in-industry radiation hardness and the space industry’s highest recognized assurance class. All variants are available with or without our patented El Matador collision avoidance feature.

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.

Simplify your interface.

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.  Aurora’s flexible software interface makes it easy to control from your CDH.  You can set thrust and burn duration and just fire-and-forget, or you can control detailed aspects of performance and retrieve operational parameters logged internally to the Aurora system.

Custom Integrated Modules

Orbion can design a custom packaging solution to integrate Aurora with your spacecraft. We can even perform the integration labor and inspections: send us a spacecraft panel and we return it to you with a fully integrated and fueled propulsion system ready to bolt on to your spacecraft.

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 Graphic RevA

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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