# Chang'e 3 3D model

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

Free 3D model of Chang'e 3, a lander or rover, built from published dimensions by Space Radar. 16,471 triangles, 122 kB glTF, MIT.

- **Class:** Landers and rovers
- **Mission:** Landers and rovers
- **Triangles:** 16,471
- **File:** change-3.glb, 122 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 4.8 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-21
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/change-3.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/change-3.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=change-3
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** Chang'e 3 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/change-3/

## 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 published dimensions and pictures (CNSA/Siyu Zhang/Kevin M. Gill, CC BY 2.0; CNSA, CC BY 4.0).

built by this project in code (release 1.3.0 stage W3-c's scripts, one a craft, on W1-c's part library, kept with the stage's notes), from the cited dimensions and the pictures under `references`; no image-to-3D model was used, and no published mesh (CNSA publishes none under terms that allow a derivative, and NASA's 3D Resources and NASA Science's 3D models have none of these craft; read 2026-10-20)

## Dimensions

- Span: 4.76 m
- Body above ground: 0.83 m

Source: eoPortal, 'Chang'e-3', https://eoportal.org/satellite-missions/chang-e-3, OPENED 2026-10-20: 'its landing legs create a vehicle span of 4.76 m'; 'the lander body rests 0.83 m above the ground'; 'the lander is octagonal in shape with four landing legs that include secondary struts, bumpers and landing pads'; 'Two solar panels'; 'a single main engine'; 'Using a ~60 cm nozzle'; 'eight thruster modules'; 'installed on the smaller side panels of the vehicle'; 'Two ramps ... are deployed'; the camera 'Positioned on the top of the mast of the lander'; the EUV imager 'Located on the top side of the lander'; 'The telescope is positioned on the -Y side of the lander.' Wikipedia, 'Chang'e 4', OPENED 2026-10-20: 'Low Frequency Spectrometer (LFS)'; 'Terrain Camera (TCAM), mounted on top of the lander and able to rotate 360°'. OURS: the body 2.5 m across its big faces and 1.25 m tall, the legs on the corners, the panels 1.55 x 1.1 m sloping 20 to 24 degrees down, the ramps 1.9 m long, the columns, the mast, the dish, the whip and the LFS antennas' length (2.2 m as Yutu-2's pictures show them)

## References

- [ChangE-4 - PCAM](https://commons.wikimedia.org/wiki/File:ChangE-4_-_PCAM.png), CNSA/Siyu Zhang/Kevin M. Gill (CC BY 2.0 (CSNA/Siyu Zhang/Kevin M. Gill; Commons' LicenseShortName, read 2026-10-20))
- [ChangE-4 - PCAM (51216550288)](https://commons.wikimedia.org/wiki/File:ChangE-4_-_PCAM_(51216550288).png), CNSA/Siyu Zhang/Kevin M. Gill (CC BY 2.0 (CSNA/Siyu Zhang/Kevin M. Gill; Commons' LicenseShortName, read 2026-10-20))
- [Yutu-2 leaving Chang e-4-iau1901a](https://commons.wikimedia.org/wiki/File:Yutu-2_leaving_Chang_e-4-iau1901a.jpg), CNSA (CC BY 4.0 (CNSA; Commons' LicenseShortName, read 2026-10-20))
- [Chang'e 4 mockup at CSTM 02](https://commons.wikimedia.org/wiki/File:Chang%27e_4_mockup_at_CSTM_02.jpg), Shujianyang (CC BY-SA 4.0 (Shujianyang; Commons' LicenseShortName, read 2026-10-20))