Tetrative was founded in 2025, but its engineers have been developing flight hardware and software since the mid-2000s. Before Tetrative, the founding team worked at the national space research institute and in the defense industry. There they designed, tested and integrated equipment for the missions below, and contributed to their operations.
Flight computers in every orbit class
LEO: flying
Our engineers played key roles in the design and satellite integration of flight computers and satellite management units that are operating in orbit today. One has worked for more than 13 years.
GEO: flying
Our engineers played key roles in the design and satellite integration of the satellite management unit of a geostationary communications satellite, now in service.
LLO: ready for launch
Low Lunar Orbit. Our engineers designed the hardware and software architecture of a deep-space flight computer and took part in its implementation. Testing is complete and the unit is waiting for launch.
LEO · Imaging
Türkiye’s first domestic LEO imaging satellite
First domestic LEO flight computer: hardware design; payload data recording and SpaceWire router units.
LEO · Earth observation
Domestic high-resolution Earth-observation satellite
Domestic flight computer and high-capacity flight computer, SpaceWire router and payload data recording units; command and data handling subsystem; flight software; commissioning. In orbit for 13 years.
LEO · Earth observation
Türkiye’s first domestic sub-metre imaging satellite
First domestic LEO satellite management unit and GNSS receiver: hardware, FPGA and software; temperature-monitoring units; took part in the star tracker electronics hardware and software.
GEO · Communications
Türkiye’s first domestic GEO communications satellite
First domestic GEO satellite management unit: hardware, FPGA and flight software; took part in the star tracker electronics hardware and software; space-segment work-package leadership and systems engineering; commissioning and acceptance tests.
LLO (Low Lunar Orbit) · Deep space
Türkiye’s first domestic lunar exploration spacecraft
Flight computer hardware and software architecture, and part of the implementation team. Testing complete, awaiting launch.
Mission support we still provide
Our engineers continue to support the flight software of satellites in orbit today. This covers anomaly investigation, in-orbit debugging, software patches and new features uploaded to operational spacecraft.
Proof points
Selected achievements
20× faster on-board file system
Our engineers designed a flight file system for the X-band downlink and camera interfaces that raised file throughput from 4 to 80 Mbit/s.
Repeated in-orbit software updates
Our engineers delivered bug fixes and many new features to a flying satellite through several in-orbit flight-software uploads, and developed methods to reduce the space–ground command traffic these uploads require.
GNSS software updated in orbit
Our engineers developed many signal-processing algorithms and embedded system software for the GNSS receiver of a satellite already in service, and uploaded the new versions in orbit.
Collision-avoidance manoeuvre
Our engineers were part of the team that performed the country’s first space-debris collision-avoidance manoeuvre.
Build instead of buy
Our engineers developed low-level bootloaders, drivers and board support packages, and adapted CCSDS file-delivery software within a short time.
Fault recovery in software
Our engineers identified many hardware issues during functional tests and developed software recovery mechanisms for them, verified through environmental test cycles.
Commissioning in the field
Our engineers took part in satellite commissioning, supported the satellite’s operations and helped plan the acceptance tests.
Operator training
Our engineers trained the end user’s satellite operators on the data handling subsystem and gave on-call support after delivery.
Flight-proven hardware and software
Flight computer and GNSS receiver hardware and software that our engineers made major contributions to designing and integrating have worked successfully throughout the missions of the satellites they fly on, and are still running.
Published engineering
Our work, peer-reviewed
RAST 2026 · IEEE
Modular and Reusable On-Board Computer Architecture for Multi-Orbit and Deep Space Missions
A single flight-computer hardware baseline for LEO, GEO and lunar missions. A modular backplane and a common PCB layout take either radiation-tolerant or radiation-hardened components, so each mission needs only module-level changes. Validated in orbit on LEO and GEO missions: bus usage and telemetry budgets stayed within margins, and measured SEU rates confirmed the memory protection. The architecture is baselined for the national lunar mission.
RAST 2007 · 2011 · 2015 · IEEE
- Command and data handling subsystem of a high-resolution Earth-observation satellite flight model, and the flight-software task architecture that runs it
- On-board data handling with a new domestic flight computer, flight-verified in LEO, including a SpaceWire network tested in orbit in place of legacy point-to-point LVDS links
- A new-generation on-board computer and solid-state data recorder for SpaceWire platforms, with its flight software and ground station software
Beyond these missions
- FPGA hardware for a docking module on the International Space Station
- FPGA hardware for LEO and deep-space missions of a European space company
- Instrument control electronics and software for an international X-ray astronomy mission
- Automotive and defense embedded systems: vehicle control, infotainment, avionics
Conferences
- IAC 2023, Baku: lunar mission space segment
- RAST 2007–2026: on-board computers, data handling, GNSS receivers, lunar mission
- SPIE 2022, 2024: instrument control unit of an X-ray timing and polarimetry mission
- Regular participants in European space FPGA and microelectronics workshops
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