

Welcome to the Hubble Legacy Archive
The Hubble Legacy Archive (HLA) is designed to optimize science from
the Hubble Space Telescope by providing online, enhanced Hubble
products and advanced browsing capabilities. The HLA is a joint
project of the Space Telescope Science Institute (STScI), the Space
Telescope European Coordinating Facility (ST-ECF), and the Canadian
Astronomy Data Centre (CADC).
We recommend that first time HLA users begin by viewing this
introductory movie:
How to Search With the HLA (~5 min).
There are also other movies available.
Please consult the HELP page and
the FAQ for more details.
Enter Site here.
WHAT'S NEW in DR3
(May 2009)
NEW DATA PRODUCTS
USER INTERFACE ENHANCEMENTS
HLA ESSENTIALS
-
The HLA interface runs in Firefox,
Safari (version 3),
Internet Explorer
(version 7),
and similar compatible browsers.
-
To fully realize all of the HLA's functionality, one must have
cookies and popups enabled.
-
The HLA includes enhanced data products (ACS, WFPC2,
& NICMOS images, ACS & WFPC2 source lists, ACS &
NICMOS extracted grism spectra, prototype ACS mosaics) and
also provides access to the standard HST data products when
HLA enhanced products have not yet been created.
-
Footprints, which graphically display
the sky coverage on a background
image from the Digitized Sky Survey, are available for both standard
and enhanced HST data products, including extracted grism spectra
and community-contributed high-level science products.
-
Here is a matrix describing what is and is not in the HLA:
|
Instrument/Product
|
Source
|
HLA Enhanced Products1
|
Download
Format
|
Interactive
Display?
|
Notes:
-
Fraction of all HST data for which the
HLA currently includes enhanced products.
Note that the HLA searches and footprints also
include standard products. Proprietary data
and other data not yet processed by the HLA
project are available through DADS requests
(which may also be submitted using the HLA
shopping cart).
-
Contains all non-proprietary ACS data
available on 7/15/2008 with the exception
of ACS/SBC data from Jan. 13 to July 15,
2007, which will be added soon.
-
The current ACS grism sample includes 1235
spectra in the vicinity of the UDF.
-
STScI is reprocessing the NICMOS data using
the latest calibration pipeline and the HLA
has further enhanced this reprocessed data
by producing drizzled images. Current the
HLA has about 30% of the NICMOS science data,
with the rest available through DADS.
|
|
ACS/combined images
|
STScI
|
~95%2
|
FITS
|
✔
|
|
ACS/source lists
|
STScI
|
~70% (e.g., not very crowded fields)
|
Ascii
|
✔
|
|
ACS/grism extractions
|
ST-ECF
|
10%3
|
FITS
|
|
|
ACS/mosaic images
|
STScI
|
small prototype sample
|
FITS
|
✔
|
|
WFPC2/combined
images
|
CADC
|
~95%
|
FITS
|
✔
|
|
WFPC2/source lists
|
STScI
|
~70%
|
Ascii
|
✔
|
|
NICMOS/grism extractions
|
ST-ECF
|
~80%, 1-D & 2-D spectra
|
FITS
|
|
|
NICMOS/images
|
STScI
|
30% 4
|
FITS
|
✔
|
|
STIS/images and spectra
|
STScI
|
|
FITS
|
✔
|
|
FOS/spectra
|
STScI
|
|
Tar
|
|
|
GHRS/spectra
|
STScI
|
|
Tar
|
|
|
ACS,WFPC/Contributed Products
|
Community
|
|
FITS
|
✔
|
Enter
Site here.
--- The HLA Team
May 2009