# SSTL X-50 bus
*bus . products*

SSTL X-50 small-satellite platform selected for the MULA Earth-observation mission.

## Specifications
- **product status**: in-development
- **deployment context**: orbital
- **manufacturer**: surrey-satellite-technology
- **bus**: {"form_factor":"X-50 small satellite platform","platform_class":"mini"}
- **entity type**: bus
- **last verified date**: 2026-06-26
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: surrey-satellite-technology
- **attributes**: {"kind":"bus","product_status":"in-development","deployment_context":"orbital","manufacturer":"surrey-satellite-technology","description":"SSTL X-50 small-satellite platform selected for the MULA Earth-observation mission.","bus":"{\"form_factor\":\"X-50 small satellite platform\",\"platform_class\":\"mini\"}"}
- **relevance**: in-scope

## Editorial
SSTL X-50 is a small-satellite bus associated with MULA, the Philippine 130 kg Earth-observation small satellite. MULA is an under-development mission with a multispectral payload set and SSTL training milestones.[^stamina-mula] The bus is mini-class by the 130 kg MULA spacecraft mass. RemoveDEBRIS is part of the X50 design heritage before MULA and provides a 100 kg heritage flight instance for the platform family.[^stamina-mula][^removedebris-x50]

## Compositional position
- mula (missions) --[mission_buses]--> SSTL X-50 bus

## Sources
- [stamina-mula] | MULA mission page, STAMINA4Space / PhilSA | https://stamina4space.philsa.gov.ph/mula/index.html | tier=agency-doc | accessed=2026-06-26
- [philsa-mula-infographic] | MULA Satellite Infographics, Philippine Space Agency | https://philsa.gov.ph/news/multispectral-unit-for-land-assessment-mula-satellite-infographics/ | tier=agency-doc | accessed=2026-06-26
- [removedebris-x50] | RemoveDEBRIS platform summary | https://en.wikipedia.org/wiki/RemoveDEBRIS | tier=community | accessed=2026-06-26
  Lower-tier cross-check for SSTL X50 bus heritage and 100 kg mission instance.

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Source: https://eo-atlas.org/products/bus/sstl-x50
Maintainer: SpectraWorks B.V. (CC-BY 4.0)