ASTRO | Advanced Space Tethers for Remote sensing Operations

Unveiling the Hidden

We know much about our planet, yet most of it remains unexplored.
Our mission is to reveal it through innovative space technologies.

Technology

ODRADEK: the first tethered satellite system for simultaneous multi-angle observations.

Deployable Tether

Deployable up to 200 meters, the tether maintains sub-millimeter distance accuracy while enabling high-bandwidth data transmission.

Active Electric Propulsion

Independent satellite control allows configuration changes to match any mission profile.

12u Cubesat platforms

Built on proven CubeSat technologies, enabling high-performance capabilities within compact platforms.

Payload-Agnostic Design

Each platform can host a wide range of sensing payloads — from optical cameras to radar systems.

ODRADEK Operational Modes

Imaging Capabilities

Endowed with high-resolution optical and multispectral imaging instruments, the system captures detailed reflectance signatures across visible, near-infrared, and shortwave infrared bands. This enables precise mapping of surface composition, vegetation conditions, and material properties, delivering rich spatial and spectral insights for Earth-observation analytics.

Stereoscopic Imagery & 3D Terrain Reconstruction

By acquiring optical images from multiple viewing angles, the system generates highly accurate stereoscopic pairs that enable the reconstruction of digital elevation models and 3D surface geometry. This enhances spatial understanding of landscapes, infrastructure, and terrain dynamics with fine vertical and horizontal precision.

Urban Planning

Precision Agriculture

Defense

Bidirectional Reflectance Distribution Function

Endowed with high-resolution optical and multispectral sensors, the system passively captures sunlight reflected from surfaces at multiple angles, enabling the measurement of specular reflectance and bidirectional reflectance distribution functions (BRDF) for detailed material characterization. By observing targets from dual perspectives, it can assess surface anisotropy and reflectance variability across wavelengths, providing valuable insights into surface composition and structure.

Precision Agriculture

Energy

Environmental Monitoring

Equipped with advanced radar instrumentation, the system employs Synthetic Aperture Radar (SAR) techniques to transmit microwave pulses and record their echoes, synthesizing a large virtual antenna through the satellite’s motion. This enables the acquisition of high-resolution imagery independent of daylight or weather conditions, revealing structural, geometric, and dielectric properties of the observed surface and subsurface.

Moving-target detection

By exploiting phase differences, Doppler shifts, and multi-look processing, SAR data can isolate and track moving objects against static backgrounds. This enables the detection of vehicles, vessels, or other dynamic elements even in low-visibility conditions, providing a robust framework for situational awareness and real-time monitoring.

Air Surveillance

Maritime Surveillance

Defense

Subsurface Stratigraphy Analysis

Low-frequency SAR modes can penetrate soil, sand, ice, and vegetation, revealing buried layers, geological boundaries, and structural discontinuities. The resulting dielectric contrast profiles enable reconstructions of subsurface stratigraphy, supporting both scientific exploration and resource assessment.

Mining

Insurance

Environmental Monitoring

Surface Deformation & Infrastructure Monitoring

Through interferometric SAR (InSAR), the system measures millimeter-scale ground and structural movements over wide areas. This allows continuous monitoring of land subsidence, fault-line activity, volcanic deformation, and the structural health of critical infrastructure.