Energy level data are included for most spectra of H-Kr (Z=1-36), Mo (Z=42), plus up to the first five spectra of the lanthanide rare earths (Z=57-71). Classified lines with transition probabilities are included for most spectra of H-Ni (Z=1-28); output for these can be ordered by either multiplet (for a given spectrum) or wavelength. Also, prominent lines (unclassified) with wavelengths and relative intensities are included for up to the first five spectra of H-Es (Z=1-99). Some transition probabilities are listed for selected lines of Cu-Es (Z=29-99). Comprehensive wavelength lists of observed lines with relative intensities are incorporated for all spectra of Mg, Al, S, Sc, plus Be I, O II, and Ne I.
Each page of the ASD database (except the ASD home page) includes a menu bar displayed at the top of the page which can be used to navigate through the database.
The List of Spectra page provides a textual description of the contents of the database and access to the lists of Holdings for Spectral Line and Energy Level Data.
The database includes a variety of output options and search criteria.