Download - INTEGRAL Archive at HEASARC Status and Plans
April 12 - 13, 2006HEASARC Users Group
Steve Drake
INTEGRAL Archive at HEASARC Status and Plans
Steve Drake
April 12 - 13, 2006HEASARC Users Group
Steve Drake
INTEGRAL: Mission Status, Overview of US Program & Archive
• INTEGRAL is an ESA mission with NASA participation for hard X-ray/gamma-ray (15 keV-10 MeV) imaging and spectroscopy (& soft X-ray & optical instruments)
• Currently in its 4th year of operations; will be supported by ESA at least through 2010
• Spacecraft and subsystems all operating nominally• 4th GO cycle starts in August 2006• US investigators comprise ~25% of overall GO program (supported by
NASA grants) • NASA GOF mirrors ESA’s ISDC archive, and provides technical and
scientific support to US astronomy community (2.5 science FTEs)• Future of NASA INTEGRAL funding to be determined by 2006 MO&DA
Senior Review
April 12 - 13, 2006HEASARC Users Group
Steve Drake
INTEGRAL Archive: Milestones
• July 2004: The ISDC INTEGRAL Public Data Archive opened with data up to revolution 66 (5-1-03).
• September 2004: The US INTEGRAL Public Data Archive at the HEASARC opened.
• January 2005: All public data was reprocessed into revision 2 format.- Rev 2 utilizes HEASARC-compatible event file formats
• February 2005: The US INTEGRAL Public Data Archive at the HEASARC switches over to revision 2 format data.
• February 2006: 1.8 TB of public INTEGRAL data available from the HEASARC (most of mission up to Jan/Feb 2005)
April 12 - 13, 2006HEASARC Users Group
Steve Drake
INTEGRAL Archive: Current Status
• New public data is available to the community within a few days of its release from the ISDC.
• The limiting factor is the low data transfer rate from the ISDC. – ~3 spacecraft orbital revolutions = 9 days of data can be
transferred per day.
• All public data through the latest ISDC release (03-31-06) is currently available from the HEASARC archive.
April 12 - 13, 2006HEASARC Users Group
Steve Drake
Accessibility
• The US INTEGRAL Public Data Archive is accessible from the HEASARC via Browse or FTP.
• Downloading the data as a tar file is complicated by the large size of the typical observation, 1 Rev. = 3 days of data = 7-8 GB.
• The HEASARC limit for a tar file is 5 GB ==> the preferred download method is via a wget script created by Browse.
• A detailed description of all the INTEGRAL catalogs available through Browse as well as a detailed cookbook describing the downloading of data : <http://heasarc.gsfc.nasa.gov/docs/integral/inthp_archive.html>
HEASARC and INTEGRAL/GOFHEASARC and INTEGRAL/GOF-Download previews and quick-look data
-Multi-band Images, lightcurves, - Roadmap for follow-up analysis
ISGRI images (8 energy bands)SPI imagesISGRI lightcurves (23-40-80 keV)available in FITS and JPEG
April 12 - 13, 2006HEASARC Users Group
Steve Drake
High-level INTEGRAL Products
• Routine analysis of all public data– Basic analysis of 600 observations in the archive
• ISGRI and SPI lightcurves for 200 bright sources:– “INTEGRAL Bright Source Catalog” – “INTEGRAL Source Results”– ISGRI fluxes in 2 energy bands (23-40, 40-80 keV)
• “INTEGRAL AGN Catalog” - detailed information about 68 AGN available soon
