2dFdr Pipeline As a Web Service (PAWS): On Demand Reduction of Archival 2dF-AAOmega Observations

The Two-degree Field (2dF) facility of the Anglo-Australian Telescope (AAT) continues to take regular observations with millions of spectra collected over its lifetime. While individual projects have used the 2dFdr data reduction package to reduce and publish their own spectra, the majority of 2dF spectra are relatively inaccessible inside raw files located in the AAT archive. Here we introduce our 2dFdr Pipeline As a Web Service (PAWS) system that allows users to reduce 2dF-AAOmega observations on demand from the upgraded AAT archive. Without downloading data or installing 2dFdr, users can select science observations and reduction parameters before jobs are submitted for reduction. The system uses docker-py and Celery to robustly execute the reduction workflows, while a custom job tracking system keeps users informed of job progress. Data products may be downloaded and individual spectra can be viewed interactively. We intend to support additional instruments in the future.