ARCHITECTURE

A systems view of
orbital compute.

The platform is not one thing. It is a tightly coupled system of power generation, thermal rejection, compute payload, and communications — each shaping the others. The diagrams below illustrate how we think about that system.

SOLAR ARRAYPV-A · 120 kWCOMPUTE PAYLOADMODULAR · FAULT-TOLERANTRADIATOR FIELDRHX · 90 kW rejectDC BUSHEAT FLOWUPLINK · GATEWAYGROUND STATIONINORBII · SYSTEM SCHEMATIC 01ORBITAL DATA-CENTRE MODULE · REV.ALEO · 550–700 KM

Schematic · not to scale · conceptual representation of subsystem relationships.

SUBSYSTEMS

Six subsystems, one platform.

Each subsystem is a serious engineering problem on its own. The platform is the discipline of making them work together.

SYS · 01

Compute payload

Modular, redundant, radiation-aware

  • Server-class compute organised as serviceable modules
  • Fault-tolerant design with graceful degradation at the board level
  • Radiation-aware silicon selection and shielding strategy
  • Incremental refresh path across platform lifetime
SYS · 02

Power subsystem

Photovoltaic generation + power conditioning

  • Large-area deployable solar arrays sized to target compute envelope
  • On-board power conditioning and distribution
  • Battery buffer sized for eclipse and transient handling
  • Sun-tracking attitude strategy for sustained generation
SYS · 03

Thermal subsystem

Radiative rejection, tightly coupled to compute

  • Emissive radiator fields with orbit-aware orientation
  • Liquid and/or two-phase thermal loops routing waste heat outward
  • Thermal envelope co-designed with payload density
  • Monitoring and setpoint management under varying sun-angle conditions
SYS · 04

Communications

Uplink, downlink, and data return

  • Dedicated ground-station uplink / downlink for command and data
  • High-throughput data return paths for batch compute outputs
  • Inter-satellite link concepts for future constellations
  • Architected for latency-tolerant workloads
SYS · 05

Command & control

Ground operations and platform telemetry

  • Mission control tooling for compute scheduling and telemetry
  • Safe-mode handling and autonomous fault response
  • Thermal, power, and payload health observability
  • Operations playbooks for eclipse, anomaly, and contingency events
SYS · 06

Platform & structure

Mechanical backbone, launch-compatible

  • Launcher-agnostic modular bus concept
  • Structural design that treats payload, solar, and radiator as a coupled system
  • Serviceability-aware interfaces where feasible
  • Clean paths for future capacity expansion
ORBITAL VIEW

Designed for
low-Earth orbit.

Orbital regime shapes everything — sun exposure, radiation environment, ground-station passes, debris risk, and delta-V economics. LEO is the natural starting envelope for deployable, serviceable compute platforms.

LEO550–700 km target bandInclination tbd per mission
// initialising orbital sim