This repository contains data on lunar irradiance and reflectance based on measurements by the air-LUSI instrument. The instrument is described in Grantham, et al, 2022 and is a joint NASA, NIST, USGS, University of Maryland Baltimore County, McMaster University project.

The NIST-hosted home for the data is https://data.nist.gov/pdr/lps/ark:/88434/mds2-3397.

Before use, please review:

• Any notebooks in the examples directory. Even if you are not a notebook or Python user, this is informative and you can view the notebooks and plots within GitHub.
• The issues page

Users of the repository should have a relatively recent python installation with the ability to use Jupyter notebooks. See the pyproject.toml file in the root directory for required packages.

The repository has three main folders

• data contains raw netCDF files containing air-LUSI data. The files are separated by campaign, and for now only a campaign from 2022 is available.
• instrument_characterization contains auxilliary instrument data (line shapes) necessary to understand the data.
• example_usage contains Jupyter Notebook files that provide guidance on how to use the data.

John T. Woodward, Stephen E. Maxwell, Thomas C. Larason, Steven E. Grantham, Thomas C. Stone, S. Andrew Gadsden, Andrew Newton, Kevin R. Turpie (2025), Air-LUSI - Lunar Spectral Irradiance Data Repository: 2022 Data, National Institute of Standards and Technology, https://doi.org/10.18434/mds2-3397

Please include the date of access in parentheses at the end of the citation. For example: (Accessed 2025-04-09).

John Woodward
NIST Physical Measurement Laboratory
Sensor Science Division
Remote Sensing Group
[email protected]

Stephen Maxwell
Research Data and Computing Office
[email protected]