PeakSat is a Greek technology demonstration satellite intended to test a laser-based optical communication link between low Earth orbit and the optical ground station at Holomonta in Chalkidiki.[1][2][3] The 3U CubeSat-type small satellite[4] was developed by undergraduate students at the Aristotle University of Thessaloniki[1] and its development was supported by the EU's and ESA's Greek CubeSat In-Orbit Validation programme. PeakSat includes an ATLAS-1 laser terminal by the Lithuanian company Astrolight.[5][6] The satellite was launched on the Transporter-16 flight of the Falcon 9 rocket on 30 March 2026.[5][7]
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).
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