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M4AST (Modeling for Asteroids) is a free on-line tool for modeling visible and near-ir spectra of atmosphereless bodies.

The old version of M4AST is available here. Detailed description and how to (M4AST, A&A 2012).


M4AST allows to analyze visible and near-infrared spectra of planetary surfaces. There are two ways of using it: 1) analyze a spectrum from the database; 2) upload your own spectrum (anonymous file submission).

M4AST offers several routines for spectral analysis:
- plotting the data;
- merging spectra;
- taxonomy comparison;
- comparison with laboratory spectra (RELAB database);
- mineralogical modeling.

Acknowledge M4AST tool citing the article:
Modeling of asteroid spectra - M4AST, Astronomy and Astrophysics, Volume 544.
Bibliographic code here.


Authors: Marcel Popescu, Mirel Birlan, Lucian Irimiea.