GPS Block IIF
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
GPS Block IIF 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 10,088 triangles in a 54 kB glTF file, and is 13 m across at full scale.
It is part of the map’s library; no object on the live map is drawn with it today.
Dimensions and their sources
| Measure | Value |
|---|---|
| Bus 1 | 2.5 m |
| Bus 2 | 2.1 m |
| Bus 3 | 1.8 m |
| Span | 13.11 m |
eoPortal, eoportal.org/satellite-missions/gps, OPENED 2026-10-13, 'Table 1: GPS Block specifications', column Block IIF: 'Dimensions (m)' '2.5 x 2.1 x 1.8'; 'Span including solar arrays (m)' '13.11'; 'Primary Contractors' 'Boeing North American'; and its text: 'The first GPS Block IIF satellite (SVN-62) launched on May 27, 2010. The launch vehicles provided direct insertion into the GPS orbit, meaning the apogee kick motor used in earlier generations was not needed.' Air & Space Forces Magazine, airandspaceforces.com/weapons-platforms/gps, OPENED 2026-10-13: '(IIF) 9.6 x 6.5 x 12.9 ft, span incl solar panels 43.1 ft' (43.1 ft is 13.1 m: the span agrees; its body numbers do not agree with eoPortal's and are not used). ESA (F. Dilssner and others, 'Estimation of azimuthal satellite antenna PCVs', IGS Workshop 2012, files.igs.org/pub/resource/pubs/workshop/2012/Poland%202012%20-%…, OPENED 2026-10-13), 'GPS satellite antenna assembly': 'Beam-forming assembly consisting of 12 helical elements, 2 concentric circles, 4 inner elements, equally spaced. Azimuth of inner elements wrt +Y axis: IIA: 67.5, 157.5, 247.5, 337.5 deg; IIF: 22.5, 112.5, 202.5, 292.5 deg'; '12 element helix design common to all GPS and GLONASS antenna types'. THE US SPACE FORCE'S OWN FACT SHEET WAS NOT OPENED: losangeles.spaceforce.mil answers 403 to a plain request and to a reader (tried 2026-10-13); a search engine's extract of it gives '98 in wide, 80 in deep, 88 in high'. NOT CITED, read off the Air Force's painting: three panels a wing and the frame that holds them, the wing's width (1.8 m), the antenna deck as an eight-sided white plate, the size of the helices and of both rings, the long antenna at the deck's middle, the group of four at the deck's edge, the boom with a canister at its end. Which of the three body numbers lies along which axis is OURS: the 1.8 m along the Earth axis. (read 2026-10-13)
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 a US Air Force painting of a GPS Block IIF satellite.
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 on GitHub, 1 583 paths read 2026-10-13, has none of this craft; the survey of 2026-10-13 found no agency model of it under usable terms)
Where the map uses it. any record of klass satellite named NAVSTAR and launched 2010 to 2016 (12 records in the live saved data of 2026-10-12): the GPS Block IIF craft, Boeing's. They were, and while this file is on its way still are, the build `navigation-gps-iif`, a box with a ring of twelve horns and wings to an 18 m span that a catalogue site gave; public #985
Licence note. Public domain (the US Air Force picture it was drawn from); the shape is this project's, under this repository's licence. NO LOGO AND NO LETTERING is on the mesh.
References 1
What the shape was compared with. None of these pictures is in the file.
- Navstar-2FUS Air ForcePublic domain (USAF; a work of the US federal government)
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:
GPS Block IIF 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=gps-iif" title="GPS Block IIF, 3D model by Space Radar" width="600" height="450" loading="lazy" style="border:0;max-width:100%"></iframe>Related models
