The Bradford Space Comet 8000 is a medium-thrust, medium-Isp thruster assembly optimized for orbital maintenance needs of satellites in the 50 to 150 kg range. It offers a simple way to add a strong propulsive capability to large Cubesats and microsats.
It integrates a pair of water tanks with a thruster assembly as well as all the needed control systems to yield a plug & play propulsion unit.
Using low-pressure water as its propellant allows it to be integrated, shipped, launched, and used safely and without onerous handling precautions.
Its impulsive thrust and low power needs means it can be used to maintain or change an orbit quickly, minimising disruptions to revenue-generating payload operations.
Comet was the first water thruster to fly back in 2018, and today has the largest number of units in space and years of accumulated use on-orbit.
Parameter | Comet 8000 Value | |
---|---|---|
Operating Thrust | 16 - 25 mN | |
Specific Impulse | > 165 s | |
Total Impulse | 8348 Ns | |
Minimum Impulse Bit | < 50 mNs | |
Wet Mass | 6675 g | |
Dimensions | 44 x 30 x 18 cm | |
Preheating Time | 10 minutes | |
Power Consumption | < 55 W | While thrusting |
Input Voltages | 8 - 34 V | |
Digital interface | RS485, RS422 or CAN | Choose on configuration |
Command protocol | NSP v4 | |
Operational temperature | -30 to +60 °C | Using built-in heaters to maintain tank temperature |
Survival temperature | -15 to +60 °C | With extended temperature option |
8/17/2024
Unknown Destination
11/11/2023
Low Earth Orbit
3/24/2023
Earth - LEO