# COSMO-SkyMed 3D model

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

Free 3D model of COSMO-SkyMed, a satellite, built from published dimensions by Space Radar. 9,940 triangles, 58 kB glTF, MIT.

- **Class:** Satellites
- **Mission:** Earth observation
- **Triangles:** 9,940
- **File:** cosmo-skymed.glb, 58 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 5.7 m across
- **Made:** Built from dimensions
- **Added:** 2026-11-05
- **NORAD:** 31598, 32376, 33412, 37216
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/cosmo-skymed.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/cosmo-skymed.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=cosmo-skymed
- **On the live map:** https://www.spaceradar.ai/#at=sat-31598
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** COSMO-SkyMed 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/cosmo-skymed/

## 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 (eoPortal, ESA) and ASI's and TAS-I's drawings, render and photographs of COSMO-SkyMed, looked at for the layout.

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 2026-11-05, has only RADARSAT-1 of the radar craft and none of this one; the survey of 2026-11-05 found no agency model of it under usable terms)

## Dimensions

- Antenna long: 5.7 m
- Antenna wide: 1.4 m
- Solar array total: 18.3 m²
- Bus section: 1.6 m
- Bus height: 2.2 m

Source: eoPortal, https://www.eoportal.org/satellite-missions/cosmo-skymed, OPENED 2026-11-05: 'The SAA antenna has dimensions of 5.7 m x 1.4 m (elevation steering range of ±15º), consisting of 40 identical tiles arranged in five identical electrical configurations (5 horizontal electrical panels of 8 vertical tiles each).'; 'The solar arrays of the S/C (total area of 18.3 m2, built by Galileo Avionica)'; 'consisting of the main body (bus), two deployable solar arrays, and a SAR antenna'; 'SVM (Service Module) at the bottom of the bus' and 'PLM (Payload Module) at the top'; 'The mass of each spacecraft is about 1700 kg.' The English Wikipedia says the same of the antenna ('1.4 × 5.7 m'). NO PAGE GIVES THE BUS, THE ARMS OR THE PANELS IN METRES. READ OFF ASI'S DRAWING AND RENDER BY THE CITED 5.7 m: a bus about 1.6 m square and 2.2 m high; each wing as long as the antenna and 1.73 m wide, four panels of 1.325 m by 1.73 m, so that the two wings make the cited 18.3 m2 (2 x 5.3 x 1.73 = 18.3); a boom of 0.9 m from the bus to each wing. OURS: all of those three numbers, the PDHT antenna's size and place, the sun sensors, the thrusters, the foil's seams and the darker band for the payload module, the wires.

## References

- [Illustration of the deployed COSMO-SkyMed spacecraft (eoPortal, COSMO-SkyMed page)](https://www.eoportal.org/satellite-missions/cosmo-skymed), ASI (all rights reserved by ASI, as shown on eoPortal (ESA); looked at, not reproduced)
- [Artist's rendition of a COSMO-SkyMed spacecraft in orbit (eoPortal, COSMO-SkyMed page)](https://www.eoportal.org/satellite-missions/cosmo-skymed), ASI (all rights reserved by ASI, as shown on eoPortal (ESA); looked at, not reproduced)
- [Photo of the active SAR antenna in stowed and deployed configuration (eoPortal, COSMO-SkyMed page)](https://www.eoportal.org/satellite-missions/cosmo-skymed), TAS-I (all rights reserved by Thales Alenia Space Italia, as shown on eoPortal (ESA); looked at, not reproduced)