A Broadband Wide-Field Survey on the Isaac Newton Telescope

The Isaac Newton Group's Wide Field Survey Programme(1) is a multi-colour broadband imaging survey being carried out on the 2.5m Isaac Newton Telescope at the Observatorio Rogue de los Muchachos on La Palma. The survey programme is expected to have a duration of five years during which time more than 200 square degrees of sky will be imaged in up to five colours at a spatial resolution of <1.2 arcseconds. In order to maximize its scientific impact, the data obtained through the survey programme are being made available to the community on a near real-time basis - there is no proprietary period. We describe the techniques employed to meet the challenge of processing and disseminating the substantial data flows associated with this survey. Key areas addressed are: the pipelines developed to pre-process and process the data (e.g., flux and astrometric calibration) and the automation of routines to fulfill user requests for these data products, implemented through WWW interfaces.