10x Genomics Support/Xenium Onboard Analysis/

What is Xenium Onboard Analysis?

Xenium Onboard Analysis (XOA) is an on-instrument software pipeline that simultaneously collects and processes Xenium In Situ Gene Expression data on the Xenium Analyzer (XA).

The Xenium raw output data consists of decoded transcript counts and morphology images. These data reduce low-level internal sensor data, preserving details needed to assess decoded transcript quality. Raw output and other standard output files derived from them are included in the Xenium output directory for each region selected on the instrument. Because they represent raw data from the Xenium platform, decoded transcript counts and morphology images should be archived for possible off-instrument reprocessing and reproducibility. Learn more on the Archiving Xenium Data page.

The Xenium Analyzer (XA) instrument can generate Xenium Onboard Analysis outputs for the following 10x Genomics Xenium In Situ assay workflows:

Xenium In Situ assayXA v2.0XA v1.0-1.9
Gene Expresssion v1 + Cell Segmentation Staining (CG000749)-
Gene Expression v1 (CG000582)

XOA outputs can be visualized in Xenium Explorer and reanalyzed with Xenium Ranger. Refer to the following pages for software version compatibility (opens new tab):

  • Xenium Explorer compatibility
  • Xenium Ranger compatibility
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    Outputs at a glanceUnderstanding Xenium outputsAnalysis summary overviewExplore Zarr filesArchiving Xenium dataXenium Analyzer and XOA release notes
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    Other resources