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The science archive shall consist of a publicly accessible database of
astrometrically and photometrically calibrated images and object catalogues
along with housekeeping data. The science archive will contain all
data from WFCAM (ie. the UKIDSS consortium surveys and data from
PATT/non-PATT programmes). The science archive will thus consist of the
following logically independent entities:
- several object catalogue survey databases for the UKIDSS surveys
- a database of images in UKIDSS-surveyed areas
- a database of all other WFCAM observations in the form of images and
associated object catalogues
- a database of all housekeeping data associated with WFCAM observations
In addition to the independent archive of housekeeping data, such information
pertinent to subsets of image/catalogue data will be stored with those
data (in the form of header information). Housekeeping data will include
generic Data Quality Control (DQC) measures
including site information
(conditions/weather), software versions, `release' versions (for calibrations
etc.)
Data products extracted from the science archive shall be in FITS format
(images; small object catalogues attached to images; very large object
catalogues) and ASCII format (general object catalogues and housekeeping data).
Catalogues shall additionally be available in Tab-separated List (TSL)
format for compatibility with ESO-compliant browsers and remote server
communication (Davenhall 2000).
Subsections
Next: Functional requirements
Up: wfcpdr4
Previous: Hardware/software requirements
Nigel Hambly
2002-10-02