A 3U Optical Communications Mission

Started in 2023, PeakSat is a 3U CubeSat mission designed in the Aristotle University of Thessaloniki. It aims to demonstrate the capability of performing laser links with Optical Ground Stations in Greece, and to pave the way for a space-based quantum communications network.

Render of PeakSat

The mission

PeakSat is a 3U CubeSat mission that is being designed and developed at the Aristotle University of Thessaloniki. The mission is centred around the demonstration of advanced optical communications technology for both downlink and uplink, using the CubeSat platform.

PeakSat will be composed of COTS components, with the inclusion of some in-house developments and an optical terminal as a payload. The mission aims to achieve a 1 Gbps downlink at C-band and 100 Mbps uplink at L-band with the Holomondas Observatory in Halkidiki.


Consortium Partners

Aristotle University of Thessaloniki Prisma Electronics

Supported By

Programme of the European Union – Next GenerationEU

Funded by the European Union - NextGenerationEU Greece20 Hellenic Republic - Ministry of Digital Governance Greece20


Updates from the development of PeakSat

Testing the Limits: Ensuring PeakSat's Components can Endure the Harsh Reality of Space

The PeakSat team has ventured to the Tartu Observatory in Estonia to qualify two critical CubeSat subsystems that we manufacture in-house: The Communications board and the On-Board Computer. The team performed Vibration and Thermal Vacuum tests and received valuable insights to improve the performance and reliability of the boards.

Tags: News
Eleni Mavropoulou

Eleni Mavropoulou

6 min read
PeakSat Selected to be one of 13 Greek CubeSats

AUTh kicks-off the "PeakSat" project to advance optical satellite communication from Low Earth Orbit to the Cholomondas station, as part of the Greek CubeSats In-Orbit Validation Projects programme by ESA.

Tags: News


2 min read

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