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NCSA Astronomy Digital Image Library     Guide: Organization

General Organization of the Library

Projects

Images come into the Library in collections we call projects. A project is made up of one or more images stored in the FITS image format that are part of a single astronomical study resulting in a scientific publication.

Each project can contain:

One or more images stored in the FITS format.
A title, a list of authors, and a bibliographical reference.
An abstract that describes the project, the images within the project, and the scientific results of the study.
A table of technical data describing the images and the observations used to produce them.
Zero or more additional data files files associated with the project (e.g. additional table data, diagrams, PostScript figures, etc.).
A project may be browsed via its Project Page. This page is accessable either after a successful search for individual images or directly via the project's codename.

An individual image within a project may be browsed by viewing the image's Preview Page. This page is accessable either after a search for individual images or directly via the image's codename.

Codenames

Every project within the Library is given a unique codename that allows it to be accessed directly with its own URL. The unique URL (discussed below) allows other databases and Web documents to provide direct links to the project. A project codename contains three fields. For example, the fields in 95.DR.01 translate as:
95 = year of deposit into the Library.
DR = initials of first author of the project.
01 = first project by the author in that year
To link directly to this project one would use the URL, http://adil.ncsa.uiuc.edu/document/95.DR.01; requesting this URL will cause the Project Page for this project to be displayed.

Every image with a project also has has a unique codename associated with it. For instance, the second image within the project 95.DR.01 has the codename 95.DR.01.02. Requesting the URL http://adil.ncsa.uiuc.edu/document/95.DR.01.02 causes the Preview Page for this image to be displayed.

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The AstronomyDigital Image Library is a project of Radio Astronomy Imaging Team
at the National Center for Supercomputing Applications on the campus of the University of Illinois at Urbana-Champaign
Contact the ADIL: adil@ncsa.uiuc.edu