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Proceedings Paper

The ALMA/EVLA project data model: steps toward a common project description for astronomy
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Paper Abstract

The "Project Data Model" (PDM) is a model of the information that describes an astronomical observing project. In this paper we consider the PDM to cover the Proposal and Observing Preparation phases (also often called Phase 1 and Phase 2), and also the intermediate phase of reviewing and approving the project. At the back end of observing, the production of calibrated or partially calibrated science data, such models or data structures have been common for some time, albeit evolving (FITS, Measurement Set, etc.), but modelling the front end of observing is a relatively recent phenomenon, with most observatories creating their own versions of the "PDM". This paper describes work towards a common PDM for two radio observatories that are in development, ALMA and the EVLA. It goes further to explore the prospect of a wider common PDM that could be shared across astronomy. Is there a case to produce such a common PDM? And is it feasible? It is likely that a common model for Phase 1, an observing proposal, is possible. However, for a number of reasons a common model for Phase 2 is a much tougher challenge.

Paper Details

Date Published: 14 July 2008
PDF: 11 pages
Proc. SPIE 7019, Advanced Software and Control for Astronomy II, 70190P (14 July 2008); doi: 10.1117/12.789262
Show Author Affiliations
Alan Bridger, UK Astronomy Technology Ctr. (United Kingdom)
Bryan Butler, National Radio Astronomy Observatory (United States)

Published in SPIE Proceedings Vol. 7019:
Advanced Software and Control for Astronomy II
Alan Bridger; Nicole M. Radziwill, Editor(s)

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