# SERT 2 3D model

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

Free 3D model of SERT 2, a satellite, built from published dimensions by Space Radar. 16,940 triangles, 126 kB glTF, MIT.

- **Class:** Satellites
- **Mission:** Launch vehicles
- **Triangles:** 16,940
- **File:** sert-2.glb, 126 kB, glTF 2.0 binary (meshopt)
- **Look:** Physically based
- **Size:** 7.9 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-21
- **NORAD:** 4327
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/sert-2.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/sert-2.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=sert-2
- **On the live map:** https://www.spaceradar.ai/#at=sat-4327
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** SERT 2 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/sert-2/

## 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 NASA's published dimensions; compared with NASA's photographs and painting (public domain).

built by this project in code (release 1.3.0 stage W3-a's part library, lib.py, and one script a craft, kept with the stage's notes); no image-to-3D model was used, and no published mesh: NASA's 3D Resources (1 583 paths) and NASA Science's 3D models have none of this craft (read 2026-10-20)

## Dimensions

- Length: 7.92 m
- Diameter: 1.525 m
- Agena length: 6.25 m
- Wing length: 6 m
- Wing width: 1.525 m

Source: Goldman, Gurski and Hawersaat, Description of SERT II spacecraft and mission, NASA TM (1970), https://ntrs.nasa.gov/citations/19710002423, OPENED 2026-10-20: 'The satellite is 1.525 meters in diameter and 7.92 meters long'; 'The SERT II Agena is 6.25 meters long by 1.525 meters in diameter, with a modified aft equipment rack'; the spacecraft 'a right circular cylinder 53.4 centimeters high and 149 centimeters in diameter'; 'Six meters of solar array extend outward on both sides of the Agena aft end equipment rack', 'a width of 1.525 meters'; 'nose down with the thrusters pointed toward Earth'; thrusters 'offset by 10 deg from the vertical'. Array report (NTRS 19710013187), Fig. 3: '45 panels per wing arranged in 15 by 3', one wing 5.8 m and the other reaching 6.5 m from the centre line (built so). Stations along the stack read off Jones's Fig. 1A at its own scale (6.223 m). OURS: truss tubes, the thrusters' bodies, the spiral disc, the plates, the whips' length and cant

## References

- [SERT-2 ion propulsion research satellite artist concept (NASA C-70-2041)](https://commons.wikimedia.org/wiki/File:SERT-2_ion_propulsion_research_satellite_artist_concept_(NASA_C-70-2041)_360x450_q75.jpg), NASA Lewis Research Center (Public domain (NASA; Commons LicenseShortName, read 2026-10-20))
- [SPACE ELECTRIC ROCKET TEST, SERT II IN TANK 5 (GRC-1968-C-03031)](https://commons.wikimedia.org/wiki/File:SPACE_ELECTRIC_ROCKET_TEST,_SERT_II_IN_TANK_5_(GRC-1968-C-03031).jpg), NASA Glenn Research Center (Public domain (NASA; Commons LicenseShortName, read 2026-10-20))
- [Jones, Recovery of thrust magnitude from Minitrack data for the SERT-II spacecraft, GSFC X-552-70-448](https://ntrs.nasa.gov/citations/19720019048), NASA GSFC (Public domain (NASA report))
- [SERT II solar array report](https://ntrs.nasa.gov/citations/19710013187), NASA Lewis Research Center (Public domain (NASA report))