ESO Archive Services

Astronomy and Astrophysics – Astronomy

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Scientific paper

The ESO/ST-ECF Science Archive Facility (SAF) is a joint collaboration of the European Southern Observatory (ESO) and the Hubble Space Telescope-European Coordinating Facility (ST-ECF). The archive provides access to data from both the Hubble Space Telescope (HST) and the European Southern Observatory (ESO).
The ESO Science Archive offers a number of on-line information services relevant to ESO users and to the community at large. In this paper, we will go through the different steps that enable a user to retrieve raw and processed data, from the query form to the actual processing. The concept of ``Header On The Fly (HOTF)'' that ``repairs'' possibly wrong data headers with meta-data from a database is also presented, together with the fact that calibrated data from ESO instruments will shortly be made available.
The emphasis in this paper will be on how the meta-data describing each ESO observation is kept in a relational database in instrument specific tables, and how this information is used to correct data upon distribution. The avenues for making ESO science products available to the Virtual Observatory (VO){http://www.euro-vo.org} will also be explored.

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