UDF12 F105W Data Release

The UDF12 project is committed to providing timely, quality data products to enable the entire astronomical community to conduct science programs in the Hubble Ultra Deep Field.  We would like to announce the second official data release of processed, full-depth, science-ready images from the UDF12 project!
In our second data release, we provide a full-depth F105W image (100 orbits total exposure) incorporating the new UDF12 imaging and previous observations in the UDF (HUDF09 HST Program ID 11563, PI: G. Illingworth; Program ID 12099, PI: A. Riess; CANDELS, Program ID 12060,12061,12062, PIs: S. Faber, H. Ferguson). This image enabled by the UDF12 observations is the deepest ever Y-band image of the sky.  

We encourage the community to download these new F105W data from the UDF12 project.  To acquire the image, simply visit:


Please acknowledge the UDF12 project (HST Program ID 12498, PI: R. Ellis) and our observational overview paper (Koekemoer et al. 2012, arXiv:1212.1448) if you use data from our program.

Good hunting!