# SSTL-150 bus
*bus . products*

SSTL small Earth-observation satellite platform used by KazEOSat-2.

## Specifications
- **product status**: operational
- **deployment context**: orbital
- **manufacturer**: surrey-satellite-technology
- **bus**: {"mass_kg":180,"form_factor":"approximately 180 kg class Earth-observation microsatellite bus","platform_class":"mini"}
- **entity type**: bus
- **last verified date**: 2026-06-26
- **verified by**: operator
- **claim status**: claimed
- **provider**: surrey-satellite-technology
- **attributes**: {"kind":"bus","product_status":"operational","deployment_context":"orbital","manufacturer":"surrey-satellite-technology","description":"SSTL small Earth-observation satellite platform used by KazEOSat-2.","bus":"{\"mass_kg\":180,\"form_factor\":\"approximately 180 kg class Earth-observation microsatellite bus\",\"platform_class\":\"mini\"}"}
- **relevance**: in-scope

## Editorial
SSTL-150 is the small Earth-observation satellite bus represented by the KazEOSat-2 spacecraft instance. KazEOSat-2 is a 180 kg Earth-observation satellite, and the SSTL-MICRO platform datasheet uses KazEOSat-2 as an example configuration for the same micro-platform family.[^sstl-kazeosat-2][^sstl-micro-datasheet] The bus is mini-class by the 180 kg spacecraft mass. The SSTL-MICRO family context gives payload mass up to 65 kg as a family-level figure, not as a fixed capacity for every SSTL-150 instance.[^sstl-kazeosat-2][^sstl-micro-datasheet]

## Compositional position
- kazeosat-2 (missions) --[mission_buses]--> SSTL-150 bus

## Sources
- [sstl-kazeosat-2] | KazEOSat-2: Launched 2014, SSTL | https://www.sstl.co.uk/space-portfolio/launched-missions/2010-2019/kazeosat-2-launched-2014 | tier=operator-engineering | accessed=2026-06-26 | author=Surrey Satellite Technology Ltd
- [sstl-micro-datasheet] | SSTL-MICRO datasheet | https://www.sstl.co.uk/getmedia/78c3ae88-0f17-40a1-9448-8c3c7e9f6944/SSTL-MICRO.pdf | tier=operator-datasheet | accessed=2026-06-26 | author=Surrey Satellite Technology Ltd
- [wiki-kazeosat-2] | KazEOSat 2 | https://en.wikipedia.org/wiki/KazEOSat_2 | tier=community | accessed=2026-06-26
  Lower-tier cross-check for SSTL-150 / SSTL-150+ bus naming.

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Source: https://eo-atlas.org/products/bus/sstl-150
Maintainer: SpectraWorks B.V. (CC-BY 4.0)