Our Satellites are in Orbit

NetSat Formation Demonstration

S4 contributes crucial components for attitude control and on-board com-puting to this European top science ERC Advanced Grant. The formation is composed of 4 small satellites with the objective to analyze different 3D-topologies for scientific measurements. S4 turnta-bles were used for testing activity strategies for instruments, inter-satellite links and self-organization for best observation results.

Secure Communication by Quantum Key Distribution

In the CUBE mission Quantum keys are generated on-board a small satellite and distributed to the communication partners via secure optical links with entangled photons. S4 contributions include the satellite precision pointing devices and crucial tests for optical links.

TOM - Telematics earth Observation Mis-sion

3 satellites point their cameras to the same area to generate by sensor data fusion 3- dimensional surface features. These photo- grammetric observations require accu-rate pointing and tracking capabilities, tested by S4. Also OBDH and AOCS subsystems were con-tributed.

CloudCT – Computed Tomography to Characterize Clouds

Inspired by medical Computed Tomo- graphy (CT), a formation composed of 10 satellites reveals internal 3D structures and proper- ties of clouds for improved climate pre- dictions. This mission is realized with an ERC Synergy Grant, one of the European top science awards, addressing challenging and outstanding interdisciplinary topics. S4 con-tributions for robust on-board computing, accurate AOCS and instrumentation design, as well as high precision pointing in imaging are considered.

Internet of Space

In Internet of Things low bandwidth connectivity between sensors on ground can be provided via small satellites in a cost efficient way for large, poorly pop-ulated areas.