On September 9, 2009 NASA held a press conference to highlight Hubble's new instruments and their capabilities and to show that the refurbished instruments are working well and are once again able to provide amazing science data. The Early Release Observations were acquired and used to demonstrate the instruments' capabilities. With the press release these data are now public and available for use by the community. Other data have been released for public use at the time of the press conference. These data include the Early Release Science (ERS) data, and some Treasury program data.

In anticipation of a relatively heavy demand, the archives at STScI and the ESO/ST-ECF have pre-staged these data so they are available for download via anonymous ftp. In addition to faster response, the pre-staged data will be of better quality than that immediately available through the pipeline. The most current reference files and other calibration data will not be installed into the pipeline until after the press conference. These data were processed by the instrument teams and use the best available calibrations.

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