The Space Telescope Science Institute, in collaboration with the Space Telescope - European Coordinating Facility (ST-ECF), and the Canadian Astronomy Data Centre (CADC) are pleased to release the final reduced images, object catalogs, and ancillary files from the Hubble Space Telescope Ultra Deep Field program. The following directories contain the science products for each part of the program, including the primary ACS WFC observations, the NICMOS images obtained under the Cycle 12 Treasury Program 9803, and the NICMOS and ACS HRC parallel images taken with the ACS WFC images. Users should consult the "README" files for each of these datasets and the UDF Homepage for full descriptions of these science products and the UDF program.

Originally, these data were co-located at CADC and ST-ECF. Neither site is currently active, so the inactive links to these data have been removed from this page.

Links to download the raw ACS-WFC data and associated calibration files and cosmic ray masks are also provided below.

Please report any problems with these links, or data, to archive@stsci.edu.