Helmholtz Orbital Geomagnetic Simulator

HOMS

Bringing Space to the Lab

Real Orbital Magnetic Fields, Simulated on Earth.

The Helmholtz Orbital Geomagnetic Simulator (HOMS) is a cutting-edge, indigenously developed platform that redefines how satellite systems are tested on the ground. Designed to accurately reproduce the Earth's magnetic field as experienced in orbit, HOMS delivers a capability that is rare, highly specialized, and critical for modern space missions.

This system enables true-to-life simulation of orbital geomagnetic conditions, allowing engineers to replicate an entire Low Earth Orbit (LEO) magnetic profile — over 90 minutes of continuous, time-varying field dynamics — within a controlled laboratory environment.

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HOMS in clean room facility at AIDIN TECHNOLOGIES

HOMS in clean room facility at AIDIN TECHNOLOGIES

A First-of-Its-Kind Capability

HOMS stands out as a first-of-its-kind integrated system that bridges the gap between theoretical orbital models and real-world satellite behavior. Unlike conventional static calibration setups, HOMS delivers dynamic orbital replication with high fidelity.

Dynamic Orbital Simulation

High-fidelity magnetic field simulation matching real LEO orbital conditions across the complete orbit duration.

Three-Axis Field Control

Simultaneous control of X, Y, and Z magnetic field axes, replicating real-space geomagnetic conditions with precision.

Full-Orbit Execution

Continuous simulation of over 90 minutes of orbital magnetic profile for complete mission-level validation.

Key Performance

  • Magnetic field accuracy: ±5 mG
  • Magnetic field range: +7000 mG to −7000 mG
  • Current resolution: 10 mA
  • Magnetic field resolution: 2 mG per 10 mA step
  • Continuous stable magnetic field holding: Supported
  • Supported payloads: CubeSats 1U to 6U

Target Applications

01

Orbital magnetic field simulation for LEO missions

02

ADCS testing and validation

03

Magnetometer calibration and characterization

System Specifications

Complete technical parameters of the HOMS platform

Parameter Specification
Dimensions (L × W × H)100 mm × 100 mm × 100 mm
Homogeneity sphere diameter200 mm
Total weight50 kg
Magnetic field axes3-axis (X, Y, Z)
Magnetic field range+7000 mG to −7000 mG
Control precision10 mA current steps (2 mG per step)
Dynamic calibratorIncluded (software-based)
Magnetic field control methodLinear control
Mounting optionsFloor mount; modular, easy assembly/disassembly
Payload mountingOptional air bearing
Frame materialWood with ESD coating
Coil winding materialCopper
Control interfaceUSB / LAN

Software & Control

H CAGE ORBITAL SIMULATOR

A dedicated Windows-based control software with USB / LAN connectivity, providing intuitive real-time monitoring and complete orbital simulation execution.

  • Real-time plots of set current vs measured current
  • Real-time plots of set magnetic field vs measured magnetic field
  • Dynamic orbital magnetic field execution
  • Data export in CSV / Excel formats

Performance Tests

Orbit Test

Simulation of complete orbital magnetic field for any specified LEO trajectory. Reproduces time-varying geomagnetic field components with ±5 mG accuracy and max 2–5% total error across the full orbit.

Orbital simulation of 90 mins 500km LEO Orbit

Orbital simulation of 90 mins 500km LEO Orbit

Continuous Hold Test

Provides a stable, constant magnetic field along selected axes for extended durations, enabling precise magnetometer calibration and bias estimation.

Continuous Hold Test

Continuous hold test

Driving the Future of Space Systems

HOMS is not just a testing platform — it is a technology enabler for next-generation satellite missions. By bringing real orbital conditions into the lab, it empowers engineers to design, validate, and innovate with unprecedented confidence.

Mission De-risking

Validate satellite systems on the ground before launch, reducing costly in-orbit failures.

Faster Development

Accelerate iteration cycles with repeatable, controlled test environments.

Reduced Costs

Reduce dependency on expensive in-orbit testing through ground simulation.

Indigenous Innovation

Strengthening indigenous space testing infrastructure for next-gen satellite programs.

Interested in HOMS?

Get in touch with our team to learn more about how HOMS can support your satellite testing and ADCS validation requirements.

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