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. Aladin, the CDS interactive sky atlas is one of the important interoperability tools of the astronomy Web. Several recent improvements prepare it for use as a portal to the Phase A of the Astrophysical Virtual Observatory (AVO), as shown by its use as a testbed for the AVO-January 2003 demonstration (Quinn, P., 2002).
. The Image archive model described here has been developed within the scope of the IDHA (Images Distribuées Hétérogènes pour l’Astronomie) project. The IDHA project led by CDS, associates image processing scientists of LSIIT (Strasbourg), and astronomers of several French Institutes including TERAPIX from IAP, and Queen’s University (Belfast). IDHA goal is to describe the information content of image...
. Aladin, the CDS interactive sky atlas is one of the important interoperability tools of the astronomy Web. Several recent improvements prepare it for use as a portal to the Phase A of the Astrophysical Virtual Observatory (AVO), as shown by its use as a testbed for the AVO-January 2003 demonstration (Quinn, P., 2002).
. The Image archive model described here has been developed within the scope of the IDHA (Images Distribuées Hétérogènes pour l’Astronomie) project. The IDHA project led by CDS, associates image processing scientists of LSIIT (Strasbourg), and astronomers of several French Institutes including TERAPIX from IAP, and Queen’s University (Belfast). IDHA goal is to describe the information content of image...
The data modeling effort has played a key role in the Virtual Observatory project, and contributed to the effort to build a common reference framework to describe the necessary information attached to astronomical data: the metadata. Such metadata describe the observing parameters and characterize and qualify the observed measurements. These pieces of information are produced and stored in project...
Progress in digital imaging sensors such as high resolution CCDs allows space instruments to perform daily observations producing up to tens of gigabytes of data. In contrast with this technology boost, the increase of downlink capability remains insufficient. In the particular case of science missions with long spacecraft-ground distances, it is typically small (0.1 to 2 Mbps). The communication...
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