ASTRA SPACECRAFT ENGINE™️

Flight-proven electric propulsion systems for constellations

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DESIGNED, MANUFACTURED, & TESTED FOR MAXIMUM RELIABILITY

Apollo Config 3
Apollo Config 2
Custom 1 Prop

The Astra Spacecraft Engine™️ (ASE) & Astra Spacecraft Engine Max (ASE Max) can be configured with multiple thrusters and PPUs to handle a wide range of missions, from the smallest earth observation satellites up to large communications satellites with multiple kilowatts of solar power.
Each system is delivered fully integrated and tested to reduce spacecraft development complexity, while improving on orbit reliability.

Example configurations shown

ENGINE SPECIFICATIONS

ASE

Apollo Specs 1

Xenon and Krypton electric propulsion system with a magnetically shielded thruster and best-in-class performance for spacecraft with less than 1 kW of power.

PROPELLANT
Xenon OR Krypton

INPUT POWER
400 W

THRUST
~25 mN (Xe)
~18 mN (Kr)

SPECIFIC IMPULSE
~1,400 s (Xe)
~1,300 s (Kr)

TOTAL IMPULSE
300 kN-s (Xe)
300 kN-s (Kr)

PROPELLANTS

INPUT POWER

THRUST

SPECIFIC IMPULSE

TOTAL IMPULSE

ASE MAX

Apollo Specs 2

Xenon and Krypton electric propulsion system with a magnetically shielded thruster and 1.5 MN-s total impulse for spacecraft with more than 1 kW power.

PROPELLANT
Xenon OR Krypton

INPUT POWER
1,450 W

THRUST
~60 mN (Xe)
~54 mN (Kr)

SPECIFIC IMPULSE
~1,760 s (Xe)
~1,800 s (Kr)

TOTAL IMPULSE
1.5 MN-s

Astra System Overview 01

SYSTEM OVERVIEW

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Astra System Overview 02

COMPACT THRUSTER

Instant-start, heaterless, center-mounted cathode and permanent magnet design deliver high thrust and high Isp in a compact design which has been ground tested to 12,000 operational cycles.

Astra System Overview 03

RADIATION HARDENED POWER PROCESSING UNIT

The Power Processing Unit (PPU) is radiation hardened by design, replacing many microprocessors with simple and reliable components – creating a single circuit board design that is 95% efficient.

Increased radiation hardening extends system lifetimes and supports a broad range of LEO and GEO missions.

Astra System Overview 04

FEED SYSTEM WITH HERITAGE

Compact, bang-bang feed system with flight-proven components.

Each system is leak and vibration tested in an integrated system test to ensure on orbit reliability.

Astra System Overview 05

FLIGHT-PROVEN PROPELLANT TANK

Flight-proven, off-the-shelf propellant tanks meet a broad range of mission requirements without the high cost or long lead times of custom tanks.

Tanks are sized specifically to fit the unique requirements of each customer mission with flight-proven COPV construction rated to 4,000 psi.

MEETING MISSION DEMANDS WITH MULTI-THRUSTER CONFIGURATIONS

Need to go faster? Need to go farther? Need to do both? Multi-thruster configurations allow you to build a system that meets your unique mission requirements. Select the number of thrusters that meets your delta-v requirement and choose a tank that meets your total impulse needs to build the best configuration for your constellation.

Multi Thruster 2 String
Multi Thruster 3 String
Multi Thruster 4 String
2-String Multi-Thruster2-STRING 3-String Multi-Thruster3-STRING 4-String Multi-Thruster4-STRING
INPUT POWER 800 W 1,200 W 1,600 W
THRUST ~50 mN = 25 mN x 2 (Xe)
~36 mN = 18 mN x 2 (Kr)
~75 mN = 25 mN x 3 (Xe)
~54 mN = 18 mN x 3 (Kr)
~100 mN = 25 mN x 4 (Xe)
~72 mN = 18 mN x 4 (Kr)
TOTAL IMPULSE 600 kN-s (Xe)
600 kN-s (Kr)
900 kN-s (Xe)
900 kN-s (Kr)
1,200 kN-s (Xe)
1,200 kN-s (Kr)

CURRENTLY AT WORK ON ORBIT

300+ ON-ORBIT BURNS

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RENDERING BY SPACEFLIGHT, INC.