NIST Atomic Spectral Database parser

We use the National Institute of Standards and Technology (NIST) Atomic Spectral Database (ASD) pretty often for spectral analysis at work, but loading the data through their online webform is not the most optimal solution sometimes. Picking out too narrow of a spectral region to identify a plasma impurity can be deceptive, with multiple different impurities and line orders potentially contributing to the observed lines. Looking at several lines is a more robust approach but can be a cumbersome procedure, so I wrote a routine to query the NIST database, parse out the features that we want, and return them into a convenient structure.

If you think you would use it, you can download in python or  IDL.