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XMM-Newton Science Analysis System


omichain (omichain-1.51) [xmmsas_20080701_1801-8.0.0]

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Running the Omichain

The location of the ODF files to be processed is specified by either setting the environment variable SAS_ODF (setenv SAS_ODF directory_path), or by specifying the input directory (omichain inpdirectory=directory path), or by setting the environment variable SAS_ODF to a SAS summary file. For the latter, the omichain will extract the directory path from the SAS summary file.

1. Use command `omichain` to process the ODF data set in the current directory or to where SAS_ODF has been set to, and to place the product files in the current directory.
2. Use command `omichain inpdirectory=input-directory-path` to process the OM ODF data set in the specified directory, and to place the product files in the current directory.
3. Use command `omichain outdirectory=output-directory-path` to process the ODF data set in the current directory or to where SAS_ODF has been set to, and to place the output files in the specified directory.
4. Use command `omichain inpdirectory=input-directory-path outdirectory=output-directory-path` to specify both the location of the ODF data set and the directory where the product files are to be placed.

To specify which filter/filters to process add the parameter filters=''filter1 filter2 ... to any of the previous commands. To specify which exposure/exposuress to process add the parameter exposuress=''exposure1 exposure2 ... to any of the previous commands.

(In the event that the SAS summary files does not exist, it can be creating by running the SAS program odfingest.)

Some of the parameters for individual tasks can be set using the appropriate omichain parameter - the parameter names are the same as the task parameter names, prefixed with the name of the task - Please see Section 9.0.