The current status of RxA and HARP.
Spectral Line Frequencies
- JPL spectral line catalog browser form; and explanation of use
- List of observed microwave lines (Lovas 2009 revision); see also NIST fundamental data listings
- The Cologne Database for Molecular Spectroscopy
Velocity frames and definitions used at the JCMT.
In the science archive one can find data obtained with a number of retired receivers such as: