Downloading data from the ISDC archive

The below example is based on observations of the Crab from Revolution 102. To retrieve the required analysis data from the archive, go to the following URL:

http://www.isdc.unige.ch/integral/archive#Browse

The web page offers the tools that will allow you to build a list of SCWs needed to create your observation group for OSA.

• Type the name of the object (Crab) in the ``Object Name Or Coordinates:'' field
• Click on the ``More Options'' button at the top or at the bottom of the web page
• De-select the ``All'' check box at the top of the Catalog table, and select the ``SCW - Science Window Data'' one
• Change the ``Search Radius'' from ``Default'' to ``10 degrees'' for our case.
• Press the ``Specify Additional Parameters'' button at the bottom of the web page
• De-select the ``View All'' check box (press twice on it) at the top of the Query table
• Select ``scw_id'' and put the value ``0102%'' (without the quotes) to specify all SCWs from Revolution 102
• Select ``scw_type'' and put the value ``pointing'' (without the quotes), or simply ``po*'' to get only pointings
• Select the ``scw_id'' for the ``Sort'' option (roundish button next to scw_id)
• Press the ``Start Search'' button at the bottom of the web page

At this point, you should be at the Query Results page with all the SCWs available for revolution 102. Sort the ``Scw_id'' column by clicking on the left arrow below the column ``Name''. You can then select the SCWs we are interested in, i.e.,

010200200010
010200210010
010200220010
010200230010
010200240010
010200250010
010200260010
010200270010
010200280010
010200290010

Press the ``Save SCW list for the creation of Observation Groups'' button at the bottom of that table and save the file with the name ``spi.lst'' in your analysis current directory (i.e., $REP_BASE_PROD as explained above). The file ``spi.lst'' will be used later as an argument for the og_create program. In this file you find the lines

scw/0102/010200200010.001/swg.fits[1]
scw/0102/010200210010.001/swg.fits[1]
scw/0102/010200220010.001/swg.fits[1]
scw/0102/010200230010.001/swg.fits[1]
scw/0102/010200240010.001/swg.fits[1]
scw/0102/010200250010.001/swg.fits[1]
scw/0102/010200260010.001/swg.fits[1]
scw/0102/010200270010.001/swg.fits[1]
scw/0102/010200280010.001/swg.fits[1]
scw/0102/010200290010.001/swg.fits[1]

which is the list of DOLs (Data Object Locators) of the Science Window Groups you want to analyze. The DOLs include the path and name of the FITS file, and the location of the SWG grouping table inside the file (remember that a FITS file can include more than one table, or image, arranged in a number of extensions). For example, the last DOL in the above list indicates a SWG located in the first extension of the FITS file "swg.fits" lying in the directory "scw/0102/010200290010.001/".

You can download the data pressing the ``Request data products for selected rows'' button. In the ``Public Data Distribution Form'', provide your e-mail address and press the ``Submit Request'' button. You will be e-mailed the required script to get your data and the instructions for the settings of the IC files and the reference catalogue.