Greece · Experimental orbital processing and optical communications
Planetek Hellas OPTISAT
This project focuses on testing data processing and optical communications in orbit.
Planetek Hellas reports OPTISAT launched on March 30, 2026 aboard Transporter-16. The 6U mission tests onboard processing and optical downlink under an ESA contract in Greece’s microsatellite programme. It is separate from AI-eXpress and ORION.
Planetek Hellas · Launched experimental mission
Scope: Mission-specific processing · Processing primarily serves the mission’s own sensing, navigation or data workload.
Figures retain their disclosed units and scope. Launched hardware does not establish demonstrated performance; targets may change. Not disclosed means no figure in the reviewed sources.
First SCOT20 optical-terminal flight model delivered and accepted for OPTISAT.
October 6, 2025 is the TESAT announcement date. ESA’s February 13, 2026 account dates delivery, acceptance and integration to August 2025. Procurement price, direct buyer and measured in-orbit throughput remain undisclosed. ESA source: https://resilience.esa.int/archives/news/greeces-advanced-laser-satellite-communications-test-campaign-to-launch-with-esa-support
Announced 6 Oct 2025 · Evidence checked 8 Oct 2026
Satellite bus · Payload integration · Mission operations
ESA-contracted OPTISAT experimental satellite mission implemented by Planetek Hellas.
March 30 is launch event date, not verified publication date. Contract signing date, number and value undisclosed. EU recovery funding is not the procurement buyer.
Announced Publication date not supplied · Evidence checked 8 Oct 2026
Named Greek collaboration on OPTISAT. The group works to integrate cybersecurity, blockchain and AI-based technologies.
The release identifies participation and a collective integration aim. It does not allocate a specific technology to this partner or establish a procurement order, contract value or flight-demonstrated result. March 30 is the launch event date, not a verified collaboration announcement date.
Announced Publication date not supplied · Evidence checked 30 Oct 2026
Launch, deployment and mission integration services for OPTISAT, inferred from D-Orbit’s product offering.
Scope inferred from the supplier’s official portfolio (https://www.dorbit.space/media/1/11.pdf). The OPTISAT release names D-Orbit but does not confirm its individual work package. Exact procurement terms are undisclosed.
Announced Publication date not supplied · Evidence checked 8 Oct 2026
CubeSat platform and bus hardware for OPTISAT, inferred from EnduroSat’s product offering.
Scope inferred from the supplier’s official product range (https://www.endurosat.com/products-category/platforms/). The OPTISAT release names EnduroSat but does not confirm its individual work package. Exact procurement terms are undisclosed.
Announced Publication date not supplied · Evidence checked 8 Oct 2026
Named Greek collaboration on OPTISAT. The group works to integrate cybersecurity, blockchain and AI-based technologies.
The release identifies participation and a collective integration aim. It does not allocate a specific technology to this partner or establish a procurement order, contract value or flight-demonstrated result. March 30 is the launch event date, not a verified collaboration announcement date.
Announced Publication date not supplied · Evidence checked 30 Oct 2026
Named Greek collaboration on OPTISAT. The group works to integrate cybersecurity, blockchain and AI-based technologies.
The release identifies participation and a collective integration aim. It does not allocate a specific technology to this partner or establish a procurement order, contract value or flight-demonstrated result. March 30 is the launch event date, not a verified collaboration announcement date.
Announced Publication date not supplied · Evidence checked 30 Oct 2026
Onboard data and image processing software for OPTISAT, inferred from Planetek Italia’s product offering.
Scope inferred from the supplier’s official profile (https://planetek.it/en/company/about_us/profile). The OPTISAT release names Planetek Italia but does not confirm its individual work package. Exact procurement terms are undisclosed.
Announced Publication date not supplied · Evidence checked 8 Oct 2026
Satellite avionics and onboard electronics for OPTISAT, inferred from SkyLabs’ product offering.
Scope inferred from the supplier’s official avionics portfolio (https://www.skylabs.si/nanosky-avionics/). The OPTISAT release names SkyLabs but does not confirm its individual work package. Exact procurement terms are undisclosed.
Announced Publication date not supplied · Evidence checked 8 Oct 2026
Await OPTISAT commissioning and measured SCOT20/onboard-processing results from Planetek Hellas, ESA or TESAT. No dated next milestone disclosed.
Manual review 30 Oct 2026. Planetek and ESA accounts confirm March 30 launch, SCOT20 integration and intended LEO optical/onboard-processing experiments. Greek collaborators and public support reconciled with announcement dates left unknown. Measured links, processor and IT load remain unavailable. Primary body last observed 23 Oct, 06:39 UTC. Source monitoring: ongoing. Source collection and substantive profile review are separate checks. Plans and dates may change.
ESA states the optical terminal was delivered, accepted and integrated in August 2025. Exact August day and measured in-orbit results remain undisclosed.
