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______________________________________________________________________ * * * OSA News 26-OCT-2009 * * * ______________________________________________________________________ Release of updated JEM-X calibration ==================================== The standard JEM-X calibration performed automatically at the start of each INTEGRAL off-line scientific analysis (OSA) is not always sufficient to get properly calibrated results. Problems in a number of revolutions are corrected for by additional calibration files manually generated by the JEM-X Team at the National Space Institute of the Technical University of Denmark (NSI/DTU). When these files are part of the INTEGRAL instrument characteristics they are automatically used for calibration by the OSA software (either OSA 7.0 or 8.0). The ISDC has now released version 8.0.1 of the INTEGRAL instrument characteristics including new JEM-X 1 calibration files correcting for a gain dependency with temperature. If you are analyzing JEM-X 1 data from recent INTEGRAL revolutions, you should therefore update your instrument characteristics by running the following command: rsync -Lzrtv isdcarc.unige.ch::arc/FTP/arc_distr/ic_tree/prod/ $REP_BASE_PROD This command will download the updated files (and only those) to your computer in the $REP_BASE_PROD/ic/ and $REP_BASE_PROD/idx/ic/ directories, so make sure the $REP_BASE_PROD environment variable is properly set. ______________________________________________________________________ |
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