AMSAT-OSCAR 7
Shape built from published dimensions and pictures; details simplified.
Turn it in 3D
Open the 3D viewer (www.spaceradar.ai).
The viewer loads when you ask: about 700 kB the first time (three.js and the model), much less after.
Pictures 4
Three-quarter view
From the side
From behind
From above
About this model
AMSAT-OSCAR 7 is one of the 203 3D models Space Radar made itself: a satellite, built in code from published dimensions and photographs, with no image-to-3D generator and no one else’s mesh.
Shape built from published dimensions and pictures; details simplified. It has 13,532 triangles in a 68 kB glTF file, and is 0.4 m across at full scale.
On Space Radar’s live map it is drawn for the object with NORAD catalogue number 7530, where its published orbit puts it now. Open it on the map.
Dimensions and their sources
| Measure | Value |
|---|---|
| Diameter | 0.424 m |
| Height | 0.36 m |
Wikipedia, 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, 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 (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.
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).
The full record
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.
Where the map uses it. AMSAT-OSCAR 7 (NORAD 7530, `OSCAR 7 (AO-7)`, in the live saved data of 2026-10-12), by number: the oldest amateur-radio satellite still working, launched 1974. It wore the generic satellite; public #1111
Licence note. Public domain for the pictures read off (works of the US federal government, the Commons API's LicenseShortName, read 2026-10-27); the shape is this project's, under this repository's licence, built from published numbers (facts). NO LOGO AND NO LETTERING is on the mesh. NO MAKER'S PRESS-KIT PICTURE WAS COPIED OR PROJECTED: where one was looked at (named in `dimensions.source`) it is said so there.
References 4
What the shape was compared with. None of these pictures is in the file.
- QSL AMSAT OSCAR-7 (SWL)AMSAT g7ahn (Wikimedia Commons)Public domain (AMSAT g7ahn; the Commons API's LicenseShortName, read 2026-10-27)
- ao-7_3.jpgAMSAT-Deutschlandnot free: AMSAT-Deutschland's picture; looked at only (read 2026-10-27)
- ao-7_4.jpgAMSAT-Deutschlandnot free: AMSAT-Deutschland's picture; looked at only (read 2026-10-27)
- ao-7_1.jpgAMSAT-Deutschlandnot free: AMSAT-Deutschland's picture; looked at only (read 2026-10-27)
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Use it
The model is under the MIT licence: use it, change it and share it, in any project, also a paid one. Keep the credit:
AMSAT-OSCAR 7 3D model by Space Radar (spaceradar.ai), MIT LicenseAny glTF 2.0 loader that reads meshopt compression (EXT_meshopt_compression) opens the file: three.js with its MeshoptDecoder, Babylon.js, model-viewer. Tools such as glTF-Transform can write an uncompressed copy.
Or embed the viewer in your page:
<iframe src="https://www.spaceradar.ai/model/?id=ao-7" title="AMSAT-OSCAR 7, 3D model by Space Radar" width="600" height="450" loading="lazy" style="border:0;max-width:100%"></iframe>Related models
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