CurrentStatusof Atomic Spectroscop'y D'atabases at NIST Alexander Kramida, Yuri Ralchenko, Joseph Reader

National Institute of Standards and Technology, Gaithersburg, MD 20899

NIST's Atomic Spectroscopy Data Center mamtains several online databases on a tomic spectroscopy. These databases can be accessed via the physics.nlst.gov/PhysReiData web page. Our main database, Atomic Spectra Database(ASD) has recently been upgraded to v. -1.1.1, which contains critically evaluated data for about 174,000spectrallines and 92,000 energy levels of almost all elements in lhe periodic table. A new version 5.0 is to be released !his year. It will be extended to include the ground stales and ionization energies of all elements up to Ds (Z- 110) in all ionization stages with a new Web interface Cor displaying them. We continue maintaining and regularly updating our bibliography databases, cnsu ring comprehensive coverage of current literature on lltomicspectra, induding energy levels, spectral lines, transition probabilities, hyper fine structure, isotope shifts, Zeeman and Stat·k effects. We continue maintaining other popular databascssud1 as the Handbook of Basic A t·omic Specti'OScopy Da t·a, sea rchable atlases of spectra of Pt-Nc and Th-Nc lnmps, and non-LTE plasma-kinetics code comparisons.

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