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.
Astronomers routinely have to collate heterogeneous observational data for one or several targets from a variety of online resources. Traditionally this process of data aggregation can be time consuming and error prone, especially if multiple telescope archives or data centres are searched individually. To streamline this task we have developed Data Central’s Data Aggregation Service (DAS), an interactive web application that leverages Aladin Lite to display images and catalogues resulting from multiple online service queries of a given target. The modern asynchronous Python design allows these queries to be sent simultaneously and individual results are quickly displayed as soon as they are received. The DAS also hosts Pipeline As a Web Service (PAWS) data reduction workflows that may be triggered on demand. The DAS can effectively unlock science from unreduced data in telescope archives and may help manage the massive data volumes expected from next generation facilities.
Data Central is the AAO's flagship virtual observatory service, providing a central repository for Anglo-Australian Telescope (AAT) and UK Schmidt observations, survey-team derived data products and documentation. The system brings together catalogues, imaging, spectra and data cubes from dozens of surveys, providing an intuitive interface to query, explore and cross-match data sets of national and international significance. In this presentation, we brie y introduce the current services Data Central offers including: a publication-quality image cutout service, SQL query, a Single Object Viewer bringing together data products (IFS cubes, spectra, catalogues, photometry) from crossmatched sources across multiple surveys, VO services, schema browser and team-curated documentation via an in-house CMS.
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