PROBA-3 occulter
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
PROBA-3 occulter 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 15,324 triangles in a 85 kB glTF file, and is 1.4 m across at full scale.
On Space Radar’s live map it is drawn for the object with NORAD catalogue number 62258, where its published orbit puts it now. Open it on the map.
Dimensions and their sources
| Measure | Value |
|---|---|
| X | 1.378 m |
| Y | 1.069 m |
| Z | 1.16 m |
| Disc | 1.4 m |
| Mass | 250 kg |
eoPortal, eoportal.org/satellite-missions/proba-3, OPENED 2026-10-26: 'OSC wet mass is about 250 kg, with a size of 1378mm x 1069 mm x 1160 mm. The Occulter spacecraft structure is essentially a cube with all the avionics and instrument equipment mounted on the inner panels, and with the occulter disc on the anti-Sun face.'; Wikipedia, en.wikipedia.org/wiki/PROBA-3, OPENED 2026-10-26: 'It features the occulter disk that is 1.4 meters in diameter.' OURS: which side of the box is which, the metrology fittings' places and sizes, the rim's teeth.
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 ESA's published dimensions (no free picture of the craft).
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, 1 583 paths read 2026-10-26, and NASA Science's resources have none of this craft; the agency pages were searched, and no agency model of it under usable terms was found); no ESA picture or model is in the file: ESA's pictures (CC BY-SA 3.0 IGO), a visitor's photographs of the model (CC BY-SA 4.0) and ISRO's photograph of the stack (GODL-India) were looked at only, for the layout
Where the map uses it. NORAD 62258, PROBA-3 OSC, in the live saved data of 2026-10-12: the occulter spacecraft of ESA's formation-flying pair, a black box with a 1.4 m disc on its anti-Sun face, the artificial Moon that casts the shadow on the coronagraph 150 m away. It wore the shape of its class; public #1107
Licence note. This project's own shape, under this repository's licence, built from published numbers (facts). THE ONLY FREE PICTURES ARE SHARE-ALIKE (a visitor's photographs of the mission's model, CC BY-SA 4.0; ESA's pictures, CC BY-SA 3.0 IGO) or Indian government open data (GODL-India) and were LOOKED AT ONLY (named under references); nothing of them is in the file. NO LOGO AND NO LETTERING is on the mesh.
References 2
What the shape was compared with. None of these pictures is in the file.
- PROBA-3 Occulter - model II.jpgPavel Hrdlicka (Wikimedia Commons)CC BY-SA 4.0 (Pavel Hrdlicka; read 2026-10-26): share-alike, LOOKED AT ONLY, never fetched by the tool and on no sheet
- PSLV-C59, PROBA-3 - Dual spacecraft stack in cleanroom.webpIndian Space Research OrganisationGODL-India (ISRO; read 2026-10-26): LOOKED AT ONLY, never fetched by the tool and on no sheet
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:
PROBA-3 occulter 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=proba-3-osc" title="PROBA-3 occulter, 3D model by Space Radar" width="600" height="450" loading="lazy" style="border:0;max-width:100%"></iframe>Related models
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