The VISTA Data Flow System is a STFC funded activity to provide
the pipeline and archiving necessary to allow the vast data rates
from VISTA and WFCAM (as an earlier testbed) to be handled to allow
the UK astronomical community to readily extract science from the
The VDFS project will deliver
1) To the telescope operators: A system for evaluating data quality
and producing quick look calibrated data at/near the telescope.
2) To the UK community: A science archive, integrated with the
Virtual Observatory through AstroGrid, which will maintain survey
products, including catalogs, to enable science to be readily done
with the survey data. Here are the User
The Cambridge Astronomical Survey Unit (CASU)
are responsible for delivering the at/near telescope data quality
control products/tools and for astrometric and photometric calibration
of each night's data.
The Wide Field Astronomy Unit (WFAU)
in Edinburgh receive the calibrated data from each night, and associated
catalogues and ingest it into a database driven archive. As well
as enabling access to the data products received from CASU it will
generate further products based on many nights data (e.g. coadded
to go deeper, or over large areas).
Further details are found within the site.