Stock Price: 133.80 +0.20 5/23/2018 4:02 PM ET

Stock Price: 133.80 +0.20 5/23/2018 4:02 PM ET

High Performance Green Propulsion

​In partnership with Swedish Space Corporation’s ECAPS, Orbital ATK offers High Performance Green Propulsion (HPGP) technology to the spacecraft propulsion market in the United States. HPGP provides higher specific impulse and propellant density than traditional propulsion, which increases performance.

The propellant is based on Ammonium DiNitrimide (ADN) and is considerably less toxic and simpler to handle than hydrazine. The architecture of HPGP propulsion systems consists of commercial off-the-shelf components with extensive flight heritage. This enables a simplified transition away from hydrazine and reduces the overall mission cost. HPGP technology is mature and ready for implementation. It is currently flying on Sweden’s Prisma spacecraft that launched in June 2010. Prisma uses 1N (0.25 lb) thrusters that have completed flight qualification testing. ECAPS is currently expanding its portfolio of thrusters to include 5N (1 lb), 22N (5 lb) and 220N (50 lb) thrusters.​


Newton (N) HPGP thrusters and LMP-103S liquid rocket propellant are currently used on the PRISMA satellite launched in June 2010.

Future applications include:
More Information
HPGP Fact Sheet