The ESO extension to the Datalink-core dictionary

http://archive.eso.org/rdf/datalink/eso#data_documentation

The access_url points to a document describing the data release content, the originating observations, the calibration and data reduction procedures, the data quality, the data format, and, possibly, the scientific context of the programme.

http://archive.eso.org/rdf/datalink/eso#sibling_raw

The access_url points to a science raw file which can be calibrated using the same calibration cascade of the main item (the one with semantics="#this")

http://archive.eso.org/rdf/datalink/eso#calSelector_raw2raw

The access_url returns the list of raw calibration files (and their access points) that can be used to calibrate the main item and siblings (if any)

http://archive.eso.org/rdf/datalink/eso#calSelector_raw2master

The access_url returns the list of processed calibration files that can be used to calibrate the main item and siblings (if any)

http://archive.eso.org/rdf/datalink/eso#night_log

The access_url returns the associated Night Log report (text format) which contains comments on any issues that could have happened during the observation (e.g. instrument problems), as well as the information about the ambient conditions (airmass, seeing, transparency, etc.). The content_length provides only an order of magnitude of the file size.

http://archive.eso.org/rdf/datalink/eso#processed_quicklook

Processed quicklook data (QC0) are generated immediately after the observation is carried out, hence not using certified pipeline-processed calibration data, to ensure that:

• the acquired science data have the exposure level requested by the PI,
• the user-defined observational constraints have been matched during the observation.

In general, processed quicklook can be downloaded only by the observation's principal investigators or their delegates (authentication and authorization required).