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XMM-Newton Science Analysis System Page: 1
odfbrowser
November 22, 2004
Abstract
Interactive graphical viewer of an XMM-Newton Observation.
This tool allows the user to view the details of an observation.
Additionally, you may select one or more exposures within the observation, and run
the procs on that selection.
1 Use
pipeline processing no
interactive analysis yes
2 Description
odfbrowser gives the user a graphical overview of the contents of an XMM-Newton Observation Data
File (ODF).
You may use this tool to navigate through the exposures of the observation. Additionally you can select
one or more exposures, which can then be processed by the instrument specic proc.
2.1 Using odfbrowser
This section explains how to start and use the odfbrowser.
2.1.1 Before you start...
Before you start the odfbrowser, you have to make sure that at least the environment variable SAS ODF
is pointing to an ODF summary le created by odngest.
If you plan to run one or more procs on a selection of exposures, you will also have to point the environment
variable SAS CCF to a CCF le created by cifbuild.
For example (sh):
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> export SAS_ODF=/data/0174_0080940401_SCX00000SUM.SAS
> export SAS_CCF=/data/ccf.cif
2.1.2 Starting the browser
After you have set your environment as discussed above, you can start the program by executing the
command:
> odfbrowser
2.1.3 Graphical User Interface (GUI)
The main window shows all exposures of all instruments available in the observation, as denoted by
SAS ODF, together with some general information about the observation:
2.1.3.1 Toolbar The toolbar contains buttons, that allow the user to lter information and to con-
gure and run the programs on the selected exposures.
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If you hover your mouse over one of those buttons, some text will pop-up, that gives you additional
information about the button.
Some buttons will only become active once you selected one or more exposures.
2.1.3.2 Observation pane On the lower-left side of the window, you will see a list of all scientic
instruments available.
On the right side you will nd all exposures of each instrument:
The exposures are aligned as bars with some text information. The size of the bar is related to the
duration of the exposure, and the position of each bar depend on the instrument it belongs to and the
start time of the exposure.
As such, the browser generates a visual representation of the ODF summary. Each bar contains some
text, that tells you what exposure you are dealing with.
Note, that the duration of some exposures can be quite short, such that the text in the bar is not always
readable. However, if the you hover your mouse over an exposure, some extra information about that
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exposure will pop up.
A toggle button in the tool bar will change the information presented in the xposure bars. This text can
be the exposure id, instrument lter, or instrument mode.
2.1.4 Using exposures
You can simply (de-)select exposures by clicking on them.
Selecting one or more exposures activates one or more conguration buttons in the tool bar. These but-
tons allow you to adapt the procs to your needs.At the same time, a start button is enabled. By pressing
this button, odfbrowser will launch all procs that are needed to process these exposures sequentially.
2.2 The procs
Each instrument creates its own set of data les. To handle these data les, we developed a program
(that we call a proc) for each instrument.
More information about the procs and how to congure them, you can nd at:
 emproc: EPIC-MOS instrument specic
 epproc: EPIC-PN instrument specic
 rgsproc: RGS instrument specic
 omproc is not yet implemented
3 Input Files
This task does not take any input les; however it needs the environment variable SAS ODF in order to
show an observation.
4 Output Files
The output les are generated by underlying procs.
References
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