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The Multimission Archive at STScI Newsletter
Table of Contents
Just a reminder that MAST is taking a survey to gather information for the MAST Users Group and to help us prioritize our plans for improving and expanding archive services at MAST.
So take a few minutes to fill out the survey at http://archive.stsci.edu/survey2009.html. The survey will remain open through June 14, 2009.
We are pleased to announce the availability of Data Release 3 (DR3) of the Hubble Legacy Archive (HLA), delivered on May 26, 2009. The HLA is an augmentation of the Hubble Space Telescope data archive service. Its goal is to optimize the science coming from the telescope by providing immediate access to enhanced archival products, including combined data, extracted spectra, source lists, and user-contributed high-level data products, directly through a browser interface. The project is a collaboration between the Space Telescope Science Institute (STScI), the Space Telescope European Coordinating Facility (ST-ECF), and the Canadian Astronomy Data Centre (CADC).
The highlights of DR3 include several new kinds of products:
Significant improvements were also made to the HLA user interface. Among them:
We also remind HLA users that a large fraction of user-contributed High-Level Science Products, consisting of almost 5,000 images produced from ACS, WFPC2, and NICMOS data, were made available through the HLA interface as part of Data Release 2.5 on December 22, 2008. These products are identified as Level 5 (Contributed) data in the HLA Search interface.
All data available through the HLA can be searched, displayed, and retrieved through a variety of integrated tools, including search by position in the sky, instrument, and proposal ID; display and selection through the footprint of the data projected onto the digitized sky survey image; visualization as cutouts or through an interactive display tool; and retrieval through a "shopping cart" mechanism which also provides an interface to standard MAST retrieval services.
The enhanced data products include a fully reprocessed and re-calibrated science data set from the mission, performed with the final version of the CalFUSE pipeline, CalFUSE 3.2, which was updated after the end of FUSE operations. Several other supporting elements have been added to the Quick Look page for FUSE data that provide added value to archival users. These include Mission Planning Schedule plots that show the scheduled observation in the context of orbital activities, Guide Star plots, which are handy for confirming aperture orientation on the sky, and Science Data Assessment Forms, which provide the user with additional information about how the observation in question actually executed on orbit.
In addition, the new site includes general information about the FUSE mission and its history. A "Mission Overview" is available for the general public, as well as descriptions of some of the FUSE mission's scientific accomplishments. Much of the relevant material from the mission site at JHU has been transferred to the MAST site for general information and for future reference. This includes mission status reports, users group minutes and status presentations, and an image gallery.
We invite you to visit the archival FUSE site and familiarize yourself with the new format and products.
If you have comments or questions related to this site, please contact: archive.stsci.edu.
GR5 has been available on the MAST/GALEX website since the beginning of 2009. GR5 includes significant additions over the previous GR4 release. First, for all surveys except the AIS, the sky coverage has increased by 25% to 100% compared with the old GR4, depending on the GALEX survey. Second, this package includes a considerable addition of previously proprietary data from the Guest Investigator program. The tile list manifest for GR5 can be found at http://galex.stsci.edu/GR4/doc/gr45.txt
Since the Sloan (SDSS) DR7 dataset was released last year, MAST has received requests to provide cross-matching searches for targets overlapping in both surveys. As part of an inter-institutional agreement, Drs. Tamas Budavari and Sebastien Heines of Johns Hopkins University have provided cross-matching tables for the two surveys. These have been deployed at MAST and can be found at the GALEX CasJobs site (http://galex.stsci.edu/casjobs/). To access this service, you will need to register to CasJobs if you have not already done so. A Tutorial with several SQL queries will walk you through some exercises - see http://galex.stsci.edu/doc/casjobsxtutorial.htm). Please get back to us if you have any problems or would like to see additional example queries. We plan to utilize the cross-correlation catalog in GALEXView over the next few months.
Final processing of the WFPC2 data began last fall and is now 87% complete. For data that have been reprocessed, users may request data in either standard multi-extension FITS (MEF) and/or wFITS format; the default is currently the waiver FITS (wFITS) format traditionally used by WFPC2. Eventually the default will become MEF. For data not yet reprocessed, only the wFITS format is available. For more details, please visit the WFPC2 web site.
In early February, the archive began reprocessing NICMOS data acquired prior to 2008. We have completed 63% of the NICMOS data set. Any new NICMOS data taken after 2008 will use the OTFR system for now.
Requests for data sets that have already been reprocessed are filled using the new static archive. Data sets that have not yet been reprocessed will be calibrated using the OTFR system.
The operations staff maintains a webpage with the status of the reprocessing effort.
The ACS Nearby Galaxy Survey (ANGST)
Mosaic of NGC 300 from the ANGST Press release.
The ACS Nearby Galaxy Survey (ANGST) team undertook a systematic, complete, and carefully crafted imaging survey to establish a legacy of uniform multi-color photometry of resolved stars for a volume-limited sample of nearby galaxies. The Primary Investigator for the project is J. Dalcanton. The set of HLSP include binary fits tables of photometry for the ANGST sample as defined in Dalcanton et al. 2008. Also included are associated reference images and raw photometry tables.
The data are archived at MAST and may be downloaded from the MAST ANGST Website.
The Space Telescope A901/902 Galaxy Evolution Survey (STAGES)
Carina Nebula - Part 1
In 2008, the Hubble Heritage Team obtained WFPC2 mosaic data for NGC 3324 with the [O III] and [S II] filters (F502N and F673N). The resulting color composite image was released in October 2008 to commemorate the 10th anniversary of the team. This area is adjacent to the large ACS H-alpha Survey of the Carina Nebula and other smaller nearby fields. The NGC 3324 data have been released as HLSP. Max Mutchler and his team are producing HLSP for the remaining and much larger set of Carina Nebula data. These data should be released later in 2009. Until then, please visit the MAST Carina Nebula webpage for more information about these observations and links to the data NGC 3324 data products.
Image from the Hubble Heritage Release of NGC 3324
Augmentation of the Merging Galaxies HLSP Set
MAST now has a search interface for papers from refereed journals that have used data from missions archived at MAST. We have always looked for and maintained records of papers that use MAST related data and shared that data with the ADS. Now we are making those records searchable at http://archive.stsci.edu/bibliography/index.html.
While we work hard to find papers that use MAST data, we know that we have probably missed papers. If you find that we are missing a paper that used data, even in a supplementary way, please send mail to the email@example.com with the details. We would love to hear from you!
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