# AMSAT-OSCAR 7 3D model

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

Free 3D model of AMSAT-OSCAR 7, a satellite, built from published dimensions by Space Radar. 13,532 triangles, 68 kB glTF, MIT.

- **Class:** Satellites
- **Mission:** Communications
- **Triangles:** 13,532
- **File:** ao-7.glb, 68 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 0.4 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-27
- **NORAD:** 7530
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/ao-7.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/ao-7.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=ao-7
- **On the live map:** https://www.spaceradar.ai/#at=sat-7530
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** AMSAT-OSCAR 7 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/ao-7/

## 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 AMSAT pictures looked at (nothing copied).

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 has none of this craft and no agency model of it was found on 2026-10-27). ONLY PUBLIC, OFFICIALLY RELEASED PICTURES AND NUMBERS WERE USED: nothing beyond what the US Air Force, Space Force, Navy or the maker has released is drawn, and where a page does not say (the inside of a sensor, a payload's layout, the size of a part) the part is a plain closed shape or is left out, and the row says which.

## Dimensions

- Diameter: 0.424 m
- Height: 0.36 m

Source: Wikipedia, https://en.wikipedia.org/wiki/AMSAT-OSCAR_7, read 2026-10-27: 'It is shaped as an octagonal prism 360 mm high and 424 mm in diameter. It has a circularly-polarized, canted turnstile VHF/UHF antenna system and HF dipole. Four radio masts mounted at 90 degree intervals on the base of the satellite'; mass 28.6 kg. AMSAT-Deutschland, https://amsat-dl.org/en/amsat-oscar-7/, read 2026-10-27: 'Ø 43 cm x 36 cm', 'Launch mass: 29 kg'. The eight faces each carry a grid of solar cells in horizontal rows, a top plate with a central stub and a shelf at the base from which the masts spring: read off AMSAT-Deutschland's photographs of the flight model on the shaker and of the bare frame (https://amsat-dl.org/wp-content/uploads/2019/01/ao-7_3.jpg and ao-7_4.jpg, AMSAT-DL's, LOOKED AT ONLY: not free, nothing is copied) and off its artist's picture (ao-7_1.jpg). THE LENGTHS OF THE MASTS ARE NOT PUBLISHED on any page opened: the long dipole halves and the four turnstile rods are drawn in the proportion of AMSAT-DL's artist's picture, and are ILLUSTRATIVE. The 424 mm is taken as across the corners of the octagon.

## References

- [QSL AMSAT OSCAR-7 (SWL)](https://commons.wikimedia.org/wiki/File:QSL_AMSAT_OSCAR-7_(SWL).jpg), AMSAT g7ahn (Wikimedia Commons) (Public domain (AMSAT g7ahn; the Commons API's LicenseShortName, read 2026-10-27))
- [ao-7_3.jpg](https://amsat-dl.org/wp-content/uploads/2019/01/ao-7_3.jpg), AMSAT-Deutschland (not free: AMSAT-Deutschland's picture; looked at only (read 2026-10-27))
- [ao-7_4.jpg](https://amsat-dl.org/wp-content/uploads/2019/01/ao-7_4.jpg), AMSAT-Deutschland (not free: AMSAT-Deutschland's picture; looked at only (read 2026-10-27))
- [ao-7_1.jpg](https://amsat-dl.org/wp-content/uploads/2019/01/ao-7_1.jpg), AMSAT-Deutschland (not free: AMSAT-Deutschland's picture; looked at only (read 2026-10-27))