LEO Relay Service (LRS)
- Global coverage
- Real-time data backhaul
- Two-way continuous communications to LEO
- Telemetry, Tracking & Command (TT&C)
- Hardware and Waveform agnostic solutions
GEO C-band
- Low rate: up to 1 kbps
mPOWER Ka-band
- High rate: return link backhaul up to 1 Gbps
Customers
In a world that never stops moving, connections can’t wait
SES Space & Defense’s LEO Relay Services (LRS) enables real-time communication for LEO satellites, eliminating the need to wait for a direct-to-Earth line-of-sight to ground stations. Leveraging our MEO and GEO satellites provides a constant low-latency communication bridge, keeping missions connected, regardless of operational location.
At SES Space & Defense, we deliver connectivity architecture designed for the next era of space-powered operations, elevating performance, expanding reach, and bringing new levels of agility to mission-driven teams that depend on seamless global communication.
Why SES Space & Defence
In every orbit, every mission, every moment, connectivity matters.
Backed by the industry’s largest ground infrastructure, SES Space & Defense seamlessly interconnects LEO constellations, providing a redundant space-based relay layer with end-to-end connectivity across the LEO domain.
Leveraging our next-generation MEO constellation, O3b mPOWER, enables high-throughput and always-on connectivity from MEO to ground relay services, eliminating contact gaps while supporting immediate sensor data transfer and real-time command of LEO space vehicles.
Telemetry, Tracking, and Command (TT&C) and tasking for LRS are enabled through continuous MEO connectivity, ensuring reliable command, control, and health monitoring. Secure, API-driven interfaces integrate with existing tasking and scheduling systems, delivering automated control to establish relay contact with satellites, high-rate tasking via omnidirectional MEO Ka-band, and low-rate forward links via GEO C-band.
Always on
- Constantly available MEO to ground relay
- Overcome contact gaps over inaccessible land or sea
Real Time Delivery
- Persistent data relay for mission-sensitive operations
- Reduce the time of mission data to end customers
Tasking
- TT&C & Tasking options include omni Ka for higher rates and GEO C-band for low-rate forward
Scale Globally
- Single commercial service – global coverage
- Region-specific services
Open Architecture
- Waveform and hardware agnostic, with the flexibility to support a range of customer security, transport, and CONOP needs
LRS is a hardware-agnostic bent pipe to enable high user flexibility
Applications
Direct-to-Device (D2D)
Enables LEO D2D satellites to serve standard phones and IoT devices, bypassing ground infrastructure and traditional cellular networks, delivering resilient, sovereign, and scalable global connectivity to support national security, defense operations, and disaster response in remote and contested areas.
Earth Observation
Achieve real-time data transfer by overcoming the limitations of waiting for ground station passes, while providing continuous line-of-sight access for instant, secure, high-volume data delivery to support intelligence, disaster response, and environmental monitoring.
Human Exploration
Provide communication with commercial space stations, commercial resupply, and orbital transfer vehicles.
Launch Vehicle
Enhances data transmission from rockets during ascent, ensuring continuous monitoring and high-definition video relay.
Contact us
Interested in providing terminal solutions or have questions about our LEO Relay Services? Contact us to learn more about partnership opportunities and service capabilities.
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