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Off the Shelf | Propulsion Units

Comet-1000

Overview

The Bradford Space Comet 1000 is a medium-thrust, medium-Isp thruster assembly optimized for orbital maintenance needs of satellites in the 10 to 50 kg range. It offers a simple way to add a strong propulsive capability to large Cubesats and microsats.

By seamlessly integrating a water tank with a thruster assembly and essential control systems, the Comet-1000 offers a plug & play propulsion unit, simplifying deployment and operation. Its utilization of low-pressure water as propellant ensures safe integration, shipping, launch, and operation, without imposing burdensome handling precautions.

With its impulsive thrust and low power consumption, the Comet range facilitates swift orbit maintenance or adjustments, minimizing disruptions to revenue-generating payload operations. As the pioneer in water thruster technology, Comet took flight in 2018, and today boasts the most water thrusters in space, with years of accumulated on-orbit experience.

Selected
Model Specification
ParameterValueRemarks
Operating Thrust
5 - 17 mN
Specific Impulse
> 175 s
Total Impulse
1150 Ns
Minimum Impulse Bit
< 50 mNs
Wet Mass
1550 g
Dimensions
10 x 10 x 26 cm
Preheating Time
< 10 minutes
Thrust Time
< 10 minutes
Power Consumption
< 50 W
While thrusting
Input Voltages
12 - 34 V
Digital interface
RS-485, RS-422 or CAN
Choose on configuration
Command protocol
NSP v4
Operational temperature
+5 to +60 °C
Using built-in heaters to maintain tank temperature
Survival temperature
-10 to +60 °C
With extended temperature option
Radiation Reslience
> 20 kRad
Orbital Lifetime
> 5 years
Key Advantages
  • Perfectly sized for spacecraft in the 20 to 40 kg range
  • Approved for use on all launch vehicles
  • More thrust with less power
  • Highly flexible interface
  • SpaceX RPUG compliant
  • Integrated propellant management and control
  • In-flight programmable power consumption
  • Custom-located fill & drain ports...
  • ...or the unit can be supplied filled to avoid fuelling entirely
  • Built-in thermostatically regulated heaters
  • Electronics built to J-STD-001
  • All units acceptance tested according to GEVS standards

Used In

Hawkeye 360 Clusters 8 en 9

Hawkeye 360 Clusters 8 en 9

4/7/2024

Unknown Destination

HawkEye 360’s Cluster 10 Satellites

HawkEye 360’s Cluster 10 Satellites

8/16/2024

Unknown Destination

HawkEye 360 Clusters 8 and 9

HawkEye 360 Clusters 8 and 9

4/7/2024

Earth - LEO

Black Sky

Black Sky

12/3/2021

Low Earth Orbit

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