GOMX-5 Spacecraft

Demonstrate new operational concepts s high delta-V orbit raising to higher LEO.

Demo of Maritime Situational Awareness payload, and flight qualification of new GOMSpace platform product and the provision of a flight software testbed (on-orbit software lab).

The GOMX-5 platform is further improved for increased power handling, payload volume and reliability over longer mission durations

Demonstrate new operational concepts s high delta-V orbit raising to higher LEO. High speed ISL, high ∆V propulsion. 120 W. >500 m/s (electric). >100000 kbps (X-band). 0.2 deg (3-axis).

The satellite will be equipped with several advanced payloads, which are announced to be:

• TICRA (DK) for X-Band high gain reflectarray antenna, coupled with an X-band transmitter from GomSpace.
• ThrustMe (FR) for Electrical Propulsion.
• EICAS (IT) with miniaturised and improved star tracker.
• Syrlinks (FR) with advanced GNSS Precise Pointing Positioning receiver.
• Deimos (PT) and University of Padova (IT) with high accuracy GNSS receiver.
• Cobham Gaisler (SE), GMV (PL), LIRMM (FR) and UFSC (BR) with powerful radiation tolerant Advanced Payload Processors (APPs) including a GNSS Software receiver.
• Tartu Observatory (EE) with a lightweight Earth observation imager with a radiometric calibration module.
• AIKO (IT) bringing state of the art automation AI into the spacecraft.
• Czech Technical University, Institute of Experimental and Applied Physics (CZ) with state-of-the-art radiation monitor.

The GOMX-5 mission advances CubeSat capabilities by flight-qualifying GomSpace’s 8U platform and demonstrating an innovative Maritime Domain Awareness (MDA) payload. Scheduled for launch in H1 2026, it validates a modular architecture integrating deployable solar panels, high-power management, and multi-band communication. The payload detects signals across UHF to X-band for maritime surveillance. GOMX-5 also enables software validation via GomSpace’s System Integration Lab and aligns with ESA’s Zero Debris Policy through controlled deorbiting. This mission enhances CubeSat reliability, reduces mission risk, and establishes flight heritage for future constellations, reinforcing GomSpace’s role in next-generation small satellite technology.

This mission has pivoted from 2 CubeSats to a single 12U to finally one 8U CubeSat.

• PLATFORM - GomSpace
• ANTENNA - TICRA Reflectarray
• THRUSTER - ThrustMe NPT30i