# AstroSat 3D model

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

Free 3D model of AstroSat, a space telescope, built from published dimensions by Space Radar. 18,996 triangles, 118 kB glTF, MIT.

- **Class:** Space telescopes
- **Mission:** Astronomy
- **Triangles:** 18,996
- **File:** astrosat.glb, 118 kB, glTF 2.0 binary (meshopt)
- **Look:** Flat colours
- **Size:** 8.5 m across
- **Made:** Built from dimensions
- **Added:** 2026-11-05
- **NORAD:** 40930
- **Download:** https://raw.githubusercontent.com/Sara-Managed-Projects/space-radar/main/site/models/astrosat.glb
- **Mirror:** https://git.sara-agent.org/sara-projects/space-radar/raw/branch/main/site/models/astrosat.glb
- **Viewer:** https://www.spaceradar.ai/model/?id=astrosat
- **On the live map:** https://www.spaceradar.ai/#at=sat-40930
- **Licence:** MIT (https://github.com/Sara-Managed-Projects/space-radar/blob/main/LICENSE)
- **Credit:** AstroSat 3D model by Space Radar (spaceradar.ai), MIT License

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

## 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 ISRO's published dimensions of AstroSat and from ISRO's CAD view and clean-room photographs of it (GODL-India), looked at, not used.

built by this project in code (the private tool model-from-images: assemble.py, from a yaml of primitives written by a script, object `satellite-astrosat`), from the cited numbers and the pictures under `references`; no image-to-3D model was used, and no published mesh of the craft (ISRO publishes pictures, not a model; NASA's 3D Resources path list, 1 583 paths, read by name on 2026-11-05: none of this craft)

## Dimensions

- Body x: 1.96 m
- Body y: 1.75 m
- Body z: 1.3 m
- Panels: 4
- Panel: 1.4 × 1.8 m
- Mass: 1515 kg
- Sxt length: 2.465 m
- Uvit telescopes: 2
- Uvit tube: 1.5 m
- Czti: 0.5 × 0.5 × 0.7 m
- Laxpc units: 3
- Wing tip to tip: 8.5 m

Source: ISRO, 'AstroSat - Spacecraft', https://www.isro.gov.in/AstroSat-Spacecraft.html, OPENED 2026-11-05: 'Cuboid shaped; 1.96 m x 1.75 m x 1.30 m'; '2 wing assemblies, each having two panels (1.4m x 1.8 m each)'; 'About 1515 kg', '660.2 kg main bus and 854.8 kg of payloads'. eoPortal, 'AstroSat', https://www.eoportal.org/satellite-missions/astrosat, OPENED 2026-11-05: SXT telescope length 2465 mm; UVIT Invar tube 1500 mm, primary about 375 mm; CZTI 50 x 50 x 70 cm; three LAXPC; the SSM's three position-sensitive counters. PAGES DISAGREE: ISRO says about 1515 kg, eoPortal about 1650 kg (868 kg of payload), Wikipedia 1513 kg: the mass is not in the mesh. READ: the stated cuboid is the BUS BOX: the stack of instruments stands on its top deck about 1.2 m higher (the SXT's 2465 mm only fits that reading, as the tube runs down through the bus). NOT CITED, read off ISRO's CAD view and photographs: the place and size of every instrument on the deck (the three LAXPC units 0.55 to 0.6 m by 0.5 to 1.1 m and 0.86 m tall, the UVIT tubes 0.5 m across, the SXT tube 0.47 m across, the CZTI slab 0.66 m by 0.9 m, the two SSM plates 0.48 m wide and 0.85 m tall), the arms and booms of the arrays (0.43 m out from the drive, 0.9 m cross-arm, the panels 0.12 m off the face, the hinge gap), the adapter cone and ring (1.14 m across, from the clean-room photographs), the radiator tiles, the thruster pods, the cell grid and every colour.

## References

- [File:Astrosat-1.jpg and File:Astrosat-1 in deployed configuration.png (Wikimedia Commons)](https://commons.wikimedia.org/wiki/File:Astrosat-1.jpg), ISRO (GODL-India (Commons' LicenseShortName, read 2026-11-05))
- [Commons category AstroSat-1: 'Astrosat-1 prelaunch preparation in cleanroom 01 to 06', 'Astrosat-1 in clean room with its solar-arrays deployed', 'Tilted view of Astrosat-1 with folded solar-arrays', 'Inspection of Astrosat-1 in clean-room prior to its launch'](https://commons.wikimedia.org/wiki/Category:AstroSat), ISRO (GODL-India (Commons' LicenseShortName, read 2026-11-05))
- [ISRO, 'AstroSat - Spacecraft'](https://www.isro.gov.in/AstroSat-Spacecraft.html), ISRO (ISRO's page (numbers are facts; nothing copied))
- [eoPortal, 'AstroSat'](https://www.eoportal.org/satellite-missions/astrosat), ISRO; AstroSat collaboration (no licence stated (credit ISRO, AstroSat collaboration): numbers only)