Debris Detection
There are an estimated 100 million untracked pieces of small debris in space
According to NASA’s Orbital Debris Program Office, there are an estimated 100 million untracked pieces of small debris in space that cannot be avoided by spacecraft, posing a threat to satellite and spacecraft integrity. These small, untracked pieces of debris are a result of the fragmentation or surface degradation of larger items or naturally occurring micrometeoroids. The risks associated with debris will continue to grow as the volume of tracked and untracked pieces of debris rises.Â
Space debris is a growing problem. As more and more pieces of debris are left in orbit, they can cause collisions with active satellites or even endanger astronauts. The issue of space debris has become so serious that it is now seen as one of the main threats to our future orbital space exploration efforts. And with the increasing number of satellite constellations and space missions being launched, the chances of them falling foul of debris are also increasing. This is why we are so proud to work on this impactful field.
James Henderson
Lead Consultant
Cutting-edge debris detection technology
Using non-impact sensors, Plextek provides an efficient debris detection solution with continuous, real-time monitoring capabilities and a small form factor, ensuring reliable and long-lasting monitoring of micro and small debris in Low Earth Orbit.
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01 Non-impact sensor
Non-impact sensors are crucial in debris detection to minimise potential damage to the monitoring equipment and ensure continuous and reliable operation.
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02 Continuous real-time monitoring
Continuous real-time monitoring is essential in debris detection to promptly identify and track the movement of debris, enabling proactive risk mitigation and threat assessment.
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03 Ultra small form-factor
An ultra small form-factor is important in debris detection as it allows for the integration of monitoring technology into space missions with minimal impact on payload capacity, thereby maximising mission flexibility and efficiency.
Key Features
Space debris, composed of natural meteoroids and artificial debris, is accumulating around Earth. Satellite and scientific agencies monitor over 30,000 objects in orbit, composed of active satellites and larger pieces of debris from defunct satellites, anti-satellite missiles, discarded rocket parts, and in-orbit collisions. Although larger pieces are tracked, smaller debris items and natural objects present monitoring challenges. This escalating issue poses a substantial risk to both present and future space missions.Â
Plextek’s advanced mmWave technology has been enhanced for the complex challenge of space, including the integration of high gain antennas, improved radar sensitivity through additional amplification, integral redundancy, in-orbit update capability, careful heat management, and design for the challenges around the launch process and in-orbit environmental conditions. Â
Another key feature is the mmWave design, which leverages Plextek’s proprietary PLX-T60 technology platform. It also incorporates expertise and heritage from numerous terrestrial mmWave radar designs and draws on experience from two successful missions in low-Earth orbit.Â
For over 35 years, Plextek has specialized in designing radio and radar-based systems. We have extended our expertise to develop space-qualified radar systems, using cost-effective, highly integrated commercial-off-the-shelf radar technology adapted for use in space. Plextek’s work in space-qualified radar was recognized with a shortlisting for an innovation award by the Satcoms Innovation Group in 2024.Â
Technical Paper – Sensing in Space
Explore the cutting-edge technology of mmWave radar and its impact on space missions, including the detection of orbital fragments, in our technical paper “Sensing in Space”. Gain insights into safety and efficiency improvements, customization options, and performance optimization. Stay informed about the latest advancements in space technology.
Why Plextek excels
Plextek’s space-proven solutions provide enhanced safety by offering precise and real-time monitoring of orbital fragments and other space debris, giving guidance to mission planners and organisations that need to know the density of the debris fields. This technology is cost-effective as it minimizes the need for complex and expensive testing processes while ensuring accurate data collection. Additionally, our advanced threat detection capabilities enable proactive identification and tracking of potential hazards, enhancing mission security and overall operational safety in space.Â
In an era where space debris poses a significant threat to space missions, Plextek’s innovative solutions not only enhance safety and cost-effectiveness but also bring advanced threat detection capabilities to the forefront of space technology.Richard Jacklin, Commercial Lead, Plextek
