Characterization of Compositional Endmembers in PIXL Scans [Code and Data Set]

The Planetary Instrument for X-ray Lithochemistry (PIXL) on board the Perseverance rover collects high-resolution geochemical data at hundreds to thousands of individual measurement spots per scan. Here, we develop an unmixing model to retrieve and map compositional endmembers in PIXL scans and apply it to a selection of observations from the first ~1200 sols of the Perseverance mission.

This data set contains analysis code, synthetic data and results, data and unmixing results acquired from a scan by a lab analog instrument of the Los Angeles meteorite, and unmixing results acquired from six different targets analyzed by the flight instrument on board Perseverance.