# RADARSAT Constellation 3D model

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

Free 3D model of RADARSAT Constellation, a satellite, built from published dimensions by Space Radar. 15,032 triangles, 75 kB glTF, MIT.

- **Class:** Satellites
- **Mission:** Earth observation
- **Triangles:** 15,032
- **File:** rcm.glb, 75 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 6.9 m across
- **Made:** Built from dimensions
- **Added:** 2026-11-05
- **NORAD:** 44322
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/rcm.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/rcm.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=rcm
- **On the live map:** https://www.spaceradar.ai/#at=sat-44322
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** RADARSAT Constellation 3D model by Space Radar (spaceradar.ai), MIT License

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

## 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 MDA's and the CSA's drawings and photograph of the RCM, 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: 6.88 m
- Antenna wide: 1.375 m
- Array long: 2.2 m
- Array wide: 1.7 m
- Keep alive long: 1.6 m
- Keep alive wide: 0.5 m

Source: eoPortal, https://www.eoportal.org/satellite-missions/rcm, OPENED 2026-11-05: 'The spacecraft is box-shaped with a single fixed deployable solar panel.'; 'The two-panel spacecraft concept consists of a 6.88 m x 1.375 m SAR antenna.'; 'SAR antenna size 9.45 m2 (1.37 m x 6.88 m)'; the table of the missions' characteristics: 'Solar arrays (each) ... 2.2 m x 1.7 m main power ... 0.5 m x 1.6 m (keep-alive power)'; the drawing's labels: 'SAR Antenna HRMs (12)', 'Launch Vehicle Attach Points (6)', 'AIS Antennas (x4)', 'Thrusters (x4)', 'Thrusters (x2)', 'X-band Antenna', 'SAR Antenna Deployment Subsystem (DSS)'. THE PAGE GIVES TWO ANTENNA SIZES: 6.88 m x 1.375 m (the text and its table of parameters) and 6.75 m x 1.38 m (the table that compares the three RADARSAT missions); the file is built to 6.88 m x 1.375 m. THE BUS IN METRES IS NOT GIVEN FOR THE RCM (the table says only 'Canadian SmallSat Bus'). READ OFF THE DRAWINGS: a bus 1.5 m by 1.45 m and 3.5 m high, because the two 3.44 m halves of the antenna fold flat on its two X faces, and the antenna is 1.375 m wide. OURS: the bus's section and height, the array's lean of 30 degrees and its hinge height, the keep-alive array's place, the strut counts and angles, the antenna's thickness, the foil and the colours.

## References

- [RCM deployed configuration (eoPortal, RADARSAT Constellation Mission page)](https://www.eoportal.org/satellite-missions/rcm), MDA (all rights reserved by MDA, as shown on eoPortal (ESA); looked at, not reproduced)
- [RCM spacecraft with its AIS antennas (eoPortal, RADARSAT Constellation Mission page)](https://www.eoportal.org/satellite-missions/rcm), MDA (all rights reserved by MDA, as shown on eoPortal (ESA); looked at, not reproduced)
- [an RCM spacecraft in a clean room (eoPortal, RADARSAT Constellation Mission page)](https://www.eoportal.org/satellite-missions/rcm), CSA, MDA (all rights reserved by the Canadian Space Agency and MDA, as shown on eoPortal (ESA); looked at, not reproduced)