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ChemCam LIBS Spectral Dataset
Laser-Induced Breakdown Spectroscopy (LIBS) data from NASA's ChemCam instrument aboard the Curiosity rover on Mars.
Dataset Description
This dataset contains calibrated LIBS spectra (CCS files) from the ChemCam instrument, processed into a machine-learning-ready format.
Splits
| Split | Rows | Description |
|---|---|---|
| single | 908,097 | Individual shot spectra (up to 30 shots per target) |
| stat | 61,158 | Statistical aggregates (median and mean per target) |
Features
- name: Target identifier (e.g., "cl5_mcam02363")
- shot_type: For single split: "shot1" to "shot30"; For stat split: "median" or "mean"
- wave@{wavelength}: 6144 spectral intensity columns covering ~240-850 nm
Wavelength Range
- Channels: 6,144 wavelength bins
- Range: ~240 nm to ~850 nm
- Covers: UV, visible, and near-IR regions
Usage
from datasets import load_dataset
# Load single-shot spectra
single = load_dataset("jfang/ChemCam-LIBS-2512", "single")
# Load statistical aggregates
stat = load_dataset("jfang/ChemCam-LIBS-2512", "stat")
# Example: Get spectrum as numpy array
import numpy as np
row = stat["train"][0]
wave_cols = [c for c in row.keys() if c.startswith("wave@")]
spectrum = np.array([row[c] for c in sorted(wave_cols)])
Source
Data derived from NASA PDS (Planetary Data System) ChemCam calibrated spectra archive.
License
CC-BY-4.0 (Creative Commons Attribution 4.0)
Citation
If using this dataset, please cite the original ChemCam team publications and NASA PDS.
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