# NISAR 3D model

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

Free 3D model of NISAR, a satellite, built from published dimensions by Space Radar. 10,208 triangles, 76 kB glTF, MIT.

- **Class:** Satellites
- **Mission:** Earth observation
- **Triangles:** 10,208
- **File:** nisar.glb, 76 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 12 m across
- **Made:** Built from dimensions
- **Added:** 2026-10-13
- **NORAD:** 65053
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/nisar.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/nisar.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=nisar
- **On the live map:** https://www.spaceradar.ai/#at=sat-65053
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** NISAR 3D model by Space Radar (spaceradar.ai), MIT License

Canonical: https://models.spaceradar.ai/nisar/

## 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 NASA/JPL-Caltech drawings and artist's concepts of NISAR.

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 NASA pictures under `references`; no image-to-3D model was used, and no published mesh (NASA's 3D Resources, science.nasa.gov/3d-resources and github.com/nasa/NASA-3D-Resources, searched 2026-10-13, has none of this craft)

## Dimensions

- Body length: 5.5 m
- Array length: 5.5 m
- Array panel: 1.8 × 2.2 m
- Reflector diameter: 12 m
- Boom length: 9 m

Source: JPL press kit, quick facts, https://www.jpl.nasa.gov/press-kits/nisar/quick-facts/, opened 2026-10-13: 'Length of spacecraft bus and radar instrument payload: about 18 feet (5.5 meters)'; 'Length of solar panels: two deployable arrays, each just over 18 feet (5.5 meters)'; 'Radar antenna reflector diameter: about 39 feet (12 meters)'; 'Boom length for radar antenna reflector: about 30 feet (9 meters)'. JPL press kit, spacecraft, https://www.jpl.nasa.gov/press-kits/nisar/mission-overview/spacecraft/, opened 2026-10-13: 'Nearly 40 feet (12 meters) in diameter and resembling a snare drum, the radar antenna reflector is mounted at the end of a 30-foot-long (9-meter-long) boom'; 'Measuring 6 feet (1.8 meters) wide and 7 feet (2.2 meters) long, each array consists of three panels' (three panels of 1.8 m are the 5.5 m of the quick facts; built so). eoPortal, https://www.eoportal.org/satellite-missions/nisar, opened 2026-10-13: 'the entire octagonal instrument structure'; 'optical prescription (F/D=0.75)', which for 12 m is a focal length of 9 m and a dish 1 m deep; 'a 0.7m HGA (High Gain Antenna)'. NOT CITED, read off JPL's drawing and side render: the bus (1.9 x 2.0 x 2.2 m) and the instrument structure (an octagon 1.3 m across, 3.5 m long) as the two parts of the 5.5 m, the drum's 1.6 m depth and its 24 bays, where the boom stands and its two bends, the feed's 0.9 x 2.6 m

## References

- [NISAR Spacecraft diagram](https://commons.wikimedia.org/wiki/File:NISAR_Spacecraft_diagram.png), NASA/JPL-Caltech (Public domain (NASA/JPL-Caltech))
- [NISAR Side NoTilt 2022](https://commons.wikimedia.org/wiki/File:NISAR_Side_NoTilt_2022.png), NASA/JPL-Caltech (Public domain (NASA/JPL-Caltech))
- [NISAR in Orbit (Artist's Concept), PIA26613](https://commons.wikimedia.org/wiki/File:NISAR_in_Orbit_(Artist%E2%80%99s_Concept)_(PIA26613).jpg), NASA/JPL-Caltech (Public domain (NASA/JPL-Caltech, Photojournal PIA26613))