
Toolbox Installers
LIME Toolbox installers can be downloaded from the GitHub repository (github.com/LIME-ESA/lime_tbx/releases). Each release has its respective installers under assets.
Depending on your OS you need a different installer:
- Windows: LimeTBX.installer.exe
- Debian (Ubuntu, Linux mint, etc): lime_VERSION.deb
- Linux (All distributions): lime_installer.zip
- Mac: lime.pkg
The online user guide is available at lime-esa.github.io/lime_tbx.
Datasets
Lunar irradiance datasets generated during the LIME projects include ground-based measurements from both multispectral and hyperspectral instruments, as well as compiled spectral libraries and processed irradiance data. A selection of these datasets is publicly available.
As part of the project, a comprehensive spectral library of the lunar surface was compiled. This library is split into two databases: DB1 and DB2. Some datasets of each database are publicly available.

DB1 – Lunar Surface Hyperspectral Reflectance
The DB1 database contains hyperspectral measurements of the integrated lunar disc, as well as laboratory measurements. It includes two publicly available datasets from distinct instruments or campaigns:
- APOLLO 16: Laboratory reflectance spectra of Apollo 16 samples of soil. Download APOLLO.zip
- ASD Spectroradiometer: Hyperspectral measurements of lunar reflectance obtained with a well-characterised spectroradiometer at Izaña Observatory. They are available on Zenodo: https://zenodo.org/records/10534235
This dataset is the result of a measurement campaign with an ASD spectroradiometer with a spectral range from 350 to 2500 nm. The instrument was installed in the low airmass areas of the Pico Teide in Tenerife, where many other instruments are operated. The instrument measured 3 full cycles of the lunar phase. From these measurements, using various processing steps, 180 reflectance spectra have been derived, employing averaging and interpolation. The spectra cover the full range of phase angles, between -90 and 90 degrees, with a step of 1 degree.
DB2 – Annotated Lunar Irradiance Measurements
DB2 contains lunar irradiance data in GLOD-format NetCDF files, with associated metadata such as phase angle, observation geometry, and instrument details. Each file corresponds to a unique combination of instrument and observation time. It includes data from:
- CIMEL Night-Langley Lunar Irradiance: Lunar irradiance data calculated using the night-Langley method with the CIMEL CE318-TP9 solar-lunar photometer, located at Pico Teide and Izaña Observatory. The data is available on Zenodo: https://zenodo.org/records/10534333
- PROBA-V: Satellite-based data. Download PROBA-V.zip
Both of these datasets from the DB2 have an associated spectral response function that is also available for download. Download RESPONSES.zip

Project Documents
LIME 2 Documents
Hyperspectral Instrument Requirement
LIME Model ATBD
Comparison to Several Datasets
Moon AOD Retrieval
User Guide for v1.0.3
DB1 & DB2 Description
LIME 2 – CCN Documents
Latest User Guide