# Galileo FOC 3D model

> Shape built from published dimensions and pictures; details simplified.

Free 3D model of Galileo FOC, a satellite, built from published dimensions by Space Radar. 7,360 triangles, 43 kB glTF, MIT.

- **Class:** Satellites
- **Mission:** Navigation
- **Triangles:** 7,360
- **File:** galileo-foc.glb, 43 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 15 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-13
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/galileo-foc.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/galileo-foc.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=galileo-foc
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** Galileo FOC 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/galileo-foc/

## How it was made

Built in code from published dimensions and photographs, with no image-to-3D generator and no one else’s mesh. 3D model: built by Space Radar from the dimensions in EUSPA's Galileo satellite metadata.

built by this project in code (the private tool model-from-images: assemble.py, from a yaml of primitives), from the cited dimensions and the pictures under `references`; no image-to-3D model was used, and no published mesh (NASA's 3D Resources on GitHub, 1 583 paths read 2026-10-13, has none of this craft; the survey of 2026-10-13 found no agency model of it under usable terms)

## Dimensions

- Box 1: 2.53 m
- Box 2: 1.2 m
- Box 3: 1.1 m
- Solar array 1: 5 m
- Solar array 2: 1.082 m
- Span: 14.67 m
- L band antenna diameter: 1.4 m

Source: European GNSS Service Centre (EUSPA), 'Galileo Satellite Metadata', https://www.gsc-europa.eu/support-to-developers/galileo-satellite-metadata, OPENED 2026-10-13, section 6.2 'FOC Satellites', 'Dimensions of the Box with respect to the mechanical RF': 'ΔX = 2.530 m', 'ΔY = 1.200 m', 'ΔZ = 1.100 m', '±Z − panel = 3.036 m2'; section 6: 'The Galileo spacecraft is a typical box-wing type satellite, consisting of a central cube (the box) and two rectangular solar panels (the wings) attached to it'; 'The surface area of each solar array amounts to 5.41 m2 (= 5.000 m x 1.082 m)'; section 2.2: 'The +Zs-axis is normal to the separation plane and points towards the L-Band Navigation Antenna. The +Xs-axis is normal to the clock panel and points towards the clock panel'; section 3.1: 'the body is fixed in a way it keeps the Z axis towards the Earth Centre (in order to illuminate the Earth with its Navigation Antenna), the Y axis is perpendicular to the Sun and the X axis points towards deep space'; its table of surfaces: the -X face all 'A' (absorption 0.93: a black blanket), the +X and both Y faces mostly 'C' (specular 0.73: radiators). eoPortal, https://www.eoportal.org/satellite-missions/galileo-foc, OPENED 2026-10-13: 'Spacecraft body size, span' '2.5 m x 1.2 m x 1.1 m'; 'Spacecraft span' '14.67 m'; '2 wings, 2 panels each'; and under a picture of ESA's: 'the 2.5 m by 1.2 m by 1.1 m satellite's main 1.4-m diameter antenna transmits L-band navigation signals down to Earth. To its left is the hexagonal search and rescue antenna'; 'To the bottom right of the navigation antenna are a pair of infrared Earth sensors'; 'Above them is the laser retro-reflector'; 'Above that is the circular C-band antenna'. ESA, https://www.esa.int/Applications/Satellite_navigation/Galileo/Satellite_anatomy, OPENED 2026-10-13: 'Two S-band antennas'; 'The satellite rotates twice per orbit to allow the solar wings to face the Sun's rays'. DERIVED: each wing's yoke is 1.735 m, what is left of the 14.67 m span after a 1.2 m body and two 5.0 m arrays. NOT CITED: exactly where on the Earth face each antenna sits (placed from eoPortal's words and the model photograph looked at), the search-and-rescue antenna's size (0.75 m), the C-band antenna's (0.3 m), every small part's size.

## References

- [GalileoSatModel](https://commons.wikimedia.org/wiki/File:GalileoSatModel.jpg), Pouyana, Wikimedia Commons (CC BY-SA 3.0 (a visitor's photograph of a model; share-alike: looked at only))