HLA Data Release 3 Now Available

HLA Data Release 3 Includes New NICMOS Images, ACS Grisms,
WFPC2 Source Lists, Prototype Mosaics

The Hubble Legacy Archive (HLA) has entered its Data Release 3
(DR3) phase of operation. DR3 features several new
major categories of data products and substantive interface
improvements for the HLA:

- Improved NICMOS data, including both recalibrated single images
* using the new processing pipeline and Multidrizzle combinations
* of multiple exposures obtained within a single visit;
- Extracted ACS GRISM spectra provided by the Space Telescope
* European Coordinating Facility (ST-ECF);
- Source lists for WFPC2 single-visit combined images, obtained
* with both DAOPhot and Source Extractor, similar to those previously
* released for ACS images;
- A small number of prototype ACS mosaics, which combine data taken
over
* multiple visits into a single, deeper, more extended image;
- An improved set of options for the shopping cart download,
* including the ability to select images and data from multiple
* views and to combine retrieval for both HLA and DADS products,
* and an estimate of the data volume for download;
- Enhanced options for the sorting and filtering of data, and better
* interoperability between different views;
- The addition of the GALEX source catalog to the overlay options in
the
* interactive display;
- Advanced controls for the display of color images in the
interactive
* display.

The HLA project is a collaboration between the Space Telescope
Science
Institute, the Space Telescope European Coordinating Facility, and
the
Canadian Astronomy Data Centre.

For more information, please access the main HLA page at
http://hla.stsci.edu