A complete 1 N HPGP propulsion system was delivered to SSC for flight on the Prisma satellite project.

Based on COTS components with extensive flight heritage, the HPGP system on Prisma has successfully demonstrated a mission-average 8% higher performance than the hydrazine system flown on the same satellite. The two Prisma formation flying satellites were launched in 2010 and decommissioned in 2015.


Bradford ECAPS was selected to provide nineteen complete 1N HPGP propulsion system modules for Planet’s constellation of SkySat Earth observation satellites.

Planet’s SkySat satellites empower global businesses to make better decisions with timely, sub-meter color imagery and high definition video of the Earth. The HPGP systems provide the SkySat satellites with more than double the on-orbit delta-v compared to the other monopropellant systems considered during Planet’s procurement. In addition, the handling and safety advantages of HPGP provide the lowest life-cycle cost of all the liquid propulsion technologies that were evaluated.

The on-going serial productions of HPGP systems for the SkySat satellites allows Bradford ECAPS to offer the existing system design, or derivatives thereof, as an off-the-shelf solution for other small satellites with similar needs.