Every day, satellites provide geospatial insights and relay information for decision makers. To accomplish their mission, EO satellites manoeuvre and point towards selected targets on the Earth’s surface (to collect imagery or to downlink data). Satellite on-board agility (= ability to manoeuvre) is a key measure of satellite effectiveness. Today, 99% of satellites use reaction wheels to enable their agility. Reaction wheels come in all sizes, so are suitable for small satellites, but provide limited speed to the rotation of satellites. More performing actuators are Control Moment Gyroscopes (CMG). Used by only 1% of the satellite market they are mostly US built & integrated on US defence satellites. These CMGs are bulky, high cost, have lengthy production times, and are export restricted, leaving Europe un-served by this technology. Therefore the main problem is that the two components to enable agility for small satellites are either the correct size but too slow, either provide the correct speed but too big for small satellites.
Our company, VEOWARE, has developed a next-generation space technology, the microCMG. We developed a micro Control Moment Gyroscope sized specifically for Earth Observation satellites from 50 to 300kg, which, according to our market assessment, would be the ones that would require the most agility. Compared to reaction wheels the microCMG will enable small satellites to gain 10 times more agility. This gain in agility means that Earth Observation satellites would be able to analyse more zones, or have a larger swath (= area imaged on the surface) and even will be able to spend more time downlinking data. This will make a difference for satellite operators by potentially optimising revenue - reorienting the satellite to analyse zones that are not shaded by clouds, operators will be gaining access to the required data faster. Additionally, this could also lead to diversification of downstream applications due to the fact that more quality data would be available on the market.
The VEOWARE technology has been de-risked over multiple technology development contracts with the European Space Agency (ESA). To successfully reach the market, customers require VEOWARE to launch a demonstration mission in space in order to demonstrate the announced key performances of its product in the relevant environment.
The Project aims at manufacturing and launching two VEOWARE microCMG into space (i.e. two separate flights for better risk management) while engaging with customers to witness the success of the tests done in orbit and conclude on VEOWARE’s first commercial sales.