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About Hyperion GR-1
Hyperion GR-1 is the first of seven microsatellites forming the Hyperion GR constellation, developed by Open Cosmos Aegean under Greece's National Microsatellite Programme. Built primarily at Open Cosmos Aegean's facilities in Athens, its launch marks a major milestone for Greece's national space programme and its permanent satellite manufacturing capability.
A 100kg-class microsatellite, Hyperion GR-1 provides panchromatic imagery at 90cm resolution, with onboard AI processing and inter-satellite links for faster transmission from space to Earth. It also joins the initial deployment of OpenConstellation 1.0, a satellite network delivering actionable intelligence in as little as 30 minutes in emergencies.
Once complete, the Hyperion GR constellation will add two submetric resolution satellites and five equipped with multispectral, hyperspectral, SWIR, IoT and AIS payloads for maritime monitoring. The programme is a flagship initiative of the Greek Ministry of Digital Governance & AI.
Hyperion GR-1 demonstrates that Greece can do more than simply procure or use space technology: it can manufacture it, develop it further and export it. Through this investment, we have created advanced infrastructure, technical expertise and highly skilled jobs in Attica.
— Maria Kalama, Managing Director of Open Cosmos Aegean
Key Features
- Class: 100kg-class microsatellite
- Imaging: Panchromatic, 90cm resolution, VNIR multispectral 4m, 12.3 km swath width
- Onboard capabilities: AI processing and inter-satellite links
- Constellation role: First of seven Hyperion GR satellites; also part of OpenConstellation 1.0's initial 15-satellite deployment
- Applications: Flood monitoring, disaster assessment, environmental protection, agriculture, maritime surveillance, infrastructure monitoring, security
- Launch: July 2026
Partners
Hyperion GR-1 was built, assembled and tested by Open Cosmos Aegean's engineering team in Attica, Greece. Open Cosmos Aegean will operate the satellite.
- Greek Ministry of Digital Governance & AI — programme owner
- Hellenic Space Center — programme support, tasking
- European Space Agency — implementation partner
- Funded by the European Union's Recovery and Resilience Facility
