The Growing Challenge of Space Debris
With thousands of active and defunct satellites orbiting Earth, space debris poses an escalating threat to operational space missions. Uncontrolled satellites can collide, creating hazardous debris fields that jeopardize space infrastructure. To address this, CNES initiated the “T4SC” (Tech for Space Care) program, aimed at developing advanced technologies to tackle the different issues of space debris.
Syntony, a leader in GNSS-based solutions, is at the forefront of this initiative with its End-Of-Life Tracker for Spacecraft (EOLTS). Unlike conventional GNSS receivers that consume significant energy, EOLTS is a low energy GNSS consumption tracker designed for autonomous operation, ensuring long-term tracking capability even after a satellite’s primary systems have shut down.
EOLTS: A Game-Changer in Space Tracking
The EOLTS tracker leverages GPS and Galileo signals to provide precise location data independent of the host satellite’s onboard systems. This autonomy is achieved through:
- Ultra-low power consumption: A cloud-based architecture shifts computational load to ground-based servers, significantly reducing energy consumption of EOLTS when on-board space systems.
- Extended operational lifespan: The tracker is designed to function for over ten years in tracking mode, far exceeding conventional GNSS receivers.
- Compact and lightweight design: With a weight of approximately 400 grams and adhering to PC104 board dimensions, EOLTS will be optimized for small satellites and CubeSats.
- High positional accuracy: Targeting 17m-20m accuracy, EOLTS ensures precise space tracking.
- Low-data-rate telemetry: Enabling communication of data sample messages to the ground while minimizing bandwidth and energy demands.
By integrating these features, EOLTS will ensure regular tracking of decommissioned satellites, contributing to SSA and debris mitigation efforts.
Syntony’s GNSS Technology and the Role of SoftSpot & SWAN
EOLTS is built upon Syntony’s extensive expertise in SDR GNSS technologies, leveraging innovations from existing products like SoftSpot GNSS receivers. SoftSpot, a software-defined GNSS receiver, provides unparalleled performance in various environments, enabling precise tracking and positioning in the most challenging conditions.
Another key technology adapted for this project is the SWAN IoT tracker. Originally designed for IoT applications, SWAN is being optimized and qualified for space applications, leading to the design of EOLTS, ensuring minimal energy consumption while maintaining high precision tracking. By utilizing this proven technology, EOLTS is set to become a disruptive solution in the domain of satellite end-of-life management.
Applications and Future Potential
The potential applications of EOLTS extend beyond end-of-life tracking. This technology enables:
- De-orbiting phase monitoring: Enhancing oversight during satellite disposal maneuvers.
- Precise positioning for satellite maneuvers: Supporting controlled repositioning and collision avoidance.
- Support for in-orbit servicing missions: Assisting repair and refueling operations by providing accurate spacecraft locations.
- Low-power GNSS tracking for small satellites: Addressing the tracking needs of small satellite missions during their operations, before their end of life.
- Sustainable space initiatives: Supporting global efforts to mitigate space debris and maintain long-term orbital safety.
As the space industry prioritizes sustainable practices, solutions like EOLTS will play a vital role in ensuring long-term orbital safety. With an in-orbit demonstration scheduled for 2026, Syntony’s innovation is set to redefine how space agencies and operators manage decommissioned satellites.
Get in Touch
Interested in learning more about EOLTS and Syntony’s cutting-edge GNSS solutions? Contact us to discuss how our technologies can support your space projects and sustainability efforts.