# JUICE 3D model

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

Free 3D model of JUICE, a deep-space probe, built from published dimensions by Space Radar. 8,984 triangles, 45 kB glTF, MIT.

- **Class:** Deep-space probes
- **Mission:** Planetary science
- **Triangles:** 8,984
- **File:** juice.glb, 45 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 27 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-20
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/juice.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/juice.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=juice
- **On the live map:** https://www.spaceradar.ai/#at=deep-juice
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** JUICE 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/juice/

## 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 ESA's published dimensions (no free picture of the craft).

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 Science's 3D models, 100 resources listed 2026-10-15, and NASA's 3D Resources, 1 583 paths, have none of this craft); NO ESA PICTURE OR MODEL IS IN THE FILE: ESA's published numbers were read as numbers. ESA's terms for the images on its site, read 2026-10-15 (https://www.esa.int/ESA_Multimedia/Terms_and_Conditions): 'The website of the European Space Agency (the ESA Website) provides to users an online access to space images and videos for education, editorial and/or information purposes only. All other uses (e.g. commercial ones) are excluded and require a specific licence.' The JUICE Science Operations Centre's CAD-derived model in the SPICE kernels states no licence (its documentation page, the kernels' readme and the FTP folder, read 2026-10-15): the MESH WAS NOT FETCHED; its documentation's table of component places (numbers) was used

## Dimensions

- Stowed x: 4.09 m
- Stowed y: 2.86 m
- Stowed z: 4.35 m
- Deployed x: 16.8 m
- Span: 27.1 m
- Deployed z: 13.7 m
- Panel: 3.5 m
- Panel width: 2.5 m
- Hga: 2.5 m
- Mag boom: 10.6 m
- Rime: 16 m

Source: ESA, 'Juice spacecraft specs', https://www.esa.int/Science_Exploration/Space_Science/Juice/Juice_spacecraft_specs, OPENED 2026-10-15: 'The spacecraft is roughly cuboidal, with two large cross-shaped ‘wings’ of solar panels on either side, several extending booms and antennas, and a large dish-shaped antenna on one face'; 'Dimensions (stowed for launch) : 4.09 x 2.86 x 4.35 m'; 'Dimensions (deployed in orbit) : 16.8 x 27.1 x 13.7 m'; 'Juice will carry  a 10.6-metre-long deployable boom  for its Juice Magnetometer (J-MAG) and Radio and Plasma Wave Investigation (RPWI) instruments, and a 16-metre-long deployable antenna for its radar instrument (RIME). RPWI has three additional electric 2.5-'; 'Overall, these wings are made up of ten 2.5 x 3.5 m panels (five on each side) with a total area of 85 m 2 (and a total of 23 560 solar cells ) – the largest ever built for an interplanetary spacecraft, measuring 27 m from tip to tip.'; 'via the 2.5-metre  High Gain Antenna  (HGA'. ESA, 'Juice factsheet', OPENED 2026-10-15: 'Each solar panel measures about 2.5 m x 3.5 m; with five on each side of the spacecraft deployed  as two distinctive cross-shaped arrays , these total an area of about 85 square metres'. JUICE Science Operations Centre, 'Spacecraft Model', https://juicesoc.esac.esa.int/help/82_spacecraft_model.html, OPENED 2026-10-15: the table of component places (SPICE structure kernel juice_struct_v19), every row used quoted in a part's `cited`. ESA SPICE frames kernel juice_v46.tf, https://spiftp.esac.esa.int/data/SPICE/JUICE/kernels/fk/, OPENED 2026-10-15: '-X axis is perpendicular to the HGA mounting plane and points in the direction of the nominal HGA boresight'; 'The JUICE High Gain Antenna, HGA, is rigidly attached to the -X side of the spacecraft bus.'; 'The axis of rotation is parallel to the Y axis of the spacecraft and the solar array frames.' DERIVED: the bus 2.9 x 2.0 x 3.9 m from the SPICE places; the yoke 2.04 m from 27.1 m. OURS: the dish's place on its face, the instruments' boxes, the Langmuir booms' directions, the thickness of every rod.

## References

- [Juice flyby of Callisto artists impression](https://commons.wikimedia.org/wiki/File:Juice_flyby_of_Callisto_artists_impression.jpg), ESA (acknowledgement: ATG Europe) (CC BY-SA 3.0 IGO (ESA; Commons' LicenseShortName, read 2026-10-15): share-alike, LOOKED AT ONLY for the cross's place on each wing and the body's grey, never fetched by the tool and not on any sheet)
- [Juice launch kit cover close-up](https://commons.wikimedia.org/wiki/File:Juice_launch_kit_cover_close-up.png), ESA (CC BY-SA 3.0 IGO (ESA; read 2026-10-15): share-alike, LOOKED AT ONLY for the dish on the face beside the wings, never fetched by the tool and not on any sheet)