Cesium products set a new standard for SWaP-C.

The Nightingale Series. A complete system with a small form factor and scalable architecture.

The CommPack. A low profile, scalable cross-link communications payload.

The SDR-1001. A high-performance, compact software-defined radio.

The SBC-1461. A compact, credit-card-sized single-board computer.

The PCU-1C28. A high-efficiency, compact DC-to-DC converter.

S-band antenna array

Software-Defined Communication Systems Out-of-the-Box

CesiumAstro builds high-throughput, plug-and-play phased array communication payloads for space and airborne platforms. CesiumAstro's full-stack, multi-mission hardware and software products enable a diverse range of commercial and defense objectives.

About our mission

Element

Fully Integrated LEO Satellite

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Active Phased Arrays

Maximum Versatility On-Orbit

Dynamic Frequency-to-Beam Allocation

Maximize data rates and spectral efficiency by dynamically assigning frequency-to-beam allocations.

On-Orbit
Reconfigurability

Dynamically adapt coverage areas and support future capability with a fully software-defined payload.

Flexible Beam Management

Divide RF power among beams, flexibility defining per-beam allocation to provide improved quality of service.

Mechanical Advantage

Compact, flat-panel form factor reduces integration time and complexity to install, maintain and service.

Thermal Management

Simplify the thermal management system by spreading heat over the full surface are of the array.

Beam-Steering and Beam-Hopping

Rapidly hop and steer beams to improve spectrum utilization and increase user capacity.

Mass Manufacturable

Affordable in quantities from one to thousands utilizing commercial PCB manufacturing techniques.

Multiple Independent Beams

Maximize capacity and frequency reuse with multiple independent beams.

Jam Resistant

Apply pattern nulls to cancel interfering signals, improving signal-to-noise ratio.

Applications

Connecting the globe, ourselves and our devices

Inter-Satellite Link
‍

Establishing and maintaining the dynamic communications network between the spacecraft in the swarm.

Mission-Data Downlink

Establishing and maintaining the dynamic communications network between the spacecraft in the swarm.

Lunar Communications

Software-defined payload solutions with modular payload components configured to your mission.

Multi-Beam Connectivity
‍

Steerable, shapeable beams provide flexibility on-orbit, putting data where customers need it.

5G MmWave Phased Array

Scalable high-performance antennas grows for ground, airborne, and space applications.

Active Phased Array Payloads

Modular, scalable active phased array systems supporting high-throughput communication needs from L- to V-bands.

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Digital Backend Modules

Software-reconfigurable, credit-card-sized modules provide full back end support in a highly integrated form factor.

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CommPack Payload Achieves TRL 9 With NASA's Starling Mission

We are proud to help NASA validate mobile ad hoc networking in space as a foundational technology for future formation flying and on-orbit servicing missions.

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ACTIVE PHASED ARRAY
SYSTEMS

Modular, scalable active phased array systems supporting high-throughput communication needs from L- to V-bands.

LEARN MORE

DIGITAL BACKEND
MODULES

Software-reconfigurable, credit-card-sized modules provide full backend support in a highly integrated form-factor.

LEARN MORE

DIGITAL BACKEND
MODULES

Software-reconfigurable, credit-card-sized modules provide full backend support in a highly integrated form-factor.

LEARN MORE

How It Works

Define your payload requirements and CesiumAstro will configure a mission-ready solution customized to your application utilizing our full-stack modular product line.

Learn more

Software-Defined Communication Systems Out-of-the-Box

Element

Fully Integrated LEO Satellite

Active Phased Arrays

Maximum Versatility On-Orbit

Dynamic Frequency-to-Beam Allocation

On-OrbitReconfigurability

Flexible Beam Management

Mechanical Advantage

Thermal Management

Beam-Steering and Beam-Hopping

Mass Manufacturable

Multiple Independent Beams

Jam Resistant

Applications

Connecting the globe, ourselves and our devices

Active Phased Array Payloads

Digital Backend Modules

CommPack Payload Achieves TRL 9 With NASA's Starling Mission

ACTIVE PHASED ARRAYSYSTEMS

DIGITAL BACKEND MODULES

DIGITAL BACKEND MODULES

How It Works

On-Orbit
Reconfigurability

ACTIVE PHASED ARRAY
SYSTEMS

DIGITAL BACKEND
MODULES

DIGITAL BACKEND
MODULES