# SI-300 satellite bus
*bus . products*

Satrec Initiative 300 kg class Earth-observation satellite bus used for DubaiSat-2.

## Specifications
- **manufacturer**: satrec-initiative
- **product status**: operational
- **deployment context**: orbital
- **bus**: {"power_w":450,"form_factor":"approximately 300 kg class EO satellite bus","platform_class":"mini"}
- **entity type**: bus
- **last verified date**: 2026-06-26
- **verified by**: operator
- **claim status**: unclaimed
- **provider**: satrec-initiative
- **attributes**: {"kind":"bus","manufacturer":"satrec-initiative","product_status":"operational","deployment_context":"orbital","description":"Satrec Initiative 300 kg class Earth-observation satellite bus used for DubaiSat-2.","bus":"{\"power_w\":450,\"form_factor\":\"approximately 300 kg class EO satellite bus\",\"platform_class\":\"mini\"}"}

## Editorial
SI-300 is a Satrec Initiative 300 kg class Earth-observation bus used with DubaiSat-2. DubaiSat-2 was a UAE 1 m small electro-optical satellite with Satrec's satellite-platform contribution.[^satrec-heritage] The configuration is based on SpaceEye-1 and uses an SI-300 bus.[^gunter-dubaisat-2] DubaiSat-2 and SI-300 mass is about 300 kg, placing the platform in the mini orbital class, and power generation is more than 450 W from four solar panels.[^gunter-dubaisat-2][^eoportal-dubaisat-2]

## Compositional position
- dubaisat-2 (missions) --[mission_buses]--> SI-300 satellite bus
- khalifasat (missions) --[mission_buses]--> SI-300 satellite bus

## Sources
- [satrec-heritage] | Space Heritage, Satrec Initiative | https://www.satreci.com/page/12 | tier=operator-marketing | accessed=2026-06-26
- [gunter-dubaisat-2] | DubaiSat-2, Gunter Space Page | https://space.skyrocket.de/doc_sdat/dubaisat-2.htm | tier=community | accessed=2026-06-26
- [eoportal-dubaisat-2] | DubaiSat-2 mission record, eoPortal | https://www.eoportal.org/satellite-missions/dubaisat-2 | tier=community | accessed=2026-06-26

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Source: https://eo-atlas.org/products/bus/si-300
Maintainer: SpectraWorks B.V. (CC-BY 4.0)