Multimission Archive at Space Telescope

Alberto Conti,, for the MAST team

The Multimission Archive at Space Telescope (MAST) is NASA’s data repository for astronomy missions in the ultraviolet–optical wavelength range, including both active and legacy missions. MAST supports the astronomical community by facilitating access to its collections, offering expert user support, and providing software for calibration and analysis.

As of September 2011, the volume of MAST’s data holdings was 169 terabytes (TB). Approximately 71% of this volume is data from the Hubble Space Telescope, including reprocessed data in the Hubble Legacy Archive (HLA); 15% is from Galaxy Evolution Explorer (GALEX); 5% is from Kepler; and the rest is distributed among high-level science products (HLSPs) and data from Far Ultraviolet Spectroscopic Explorer, X-ray Multi-Mirror Mission–Newton, the Digitized Sky Survey, and other smaller missions (see Figure 1).

Figure 1


European Hubble archive to move from ST-ECF to ESAC

MAST is pleased to report that the closure of the European Coordination Facility (ST-ECF) in late 2010 will not affect the availability of Hubble data products in Europe. Shortly after ST-ECF’s end of operations, a decision was made to migrate the Hubble archive from its original location at the European Southern Observatory to the European Space Agency’s (ESA’s) European Space Astronomy Centre (ESAC), near Madrid, Spain.  You can access ESAC’s archive here. ESAC is the science operations and archive center for ESA’s space astronomy and planetary missions. Currently, the missions supported by ESAC include Infrared Space Observatory, Herschel, X-ray Multi-Mirror Mission–Newton, Integral, Planck, and Exosat.

A coordination meeting—including participants from ESO, ESAC, the Canadian Astronomy Data Center (CADC), and MAST—was held at the Institute to agree on a migration schedule for the European Hubble archive. Until the migration process is complete and ESAC is ready to start operating the Hubble archive—expected by the first quarter of 2012—ST-ECF will continue to provide access to all publicly available Hubble data here.