HEXTE Light Curve
The default state for HEXTE is to be rocking, so when one cluster is looking at background, the other is looking at your source.
- Main display (left) shows a 16-second lightcurve.
- Child display (right), obtained by selecting 'Strip Chart' under 'Options' is much more useful, it shows a 512-second light curve.
- Updated every 16 seconds.
Orientation:
- The main display has two panels, one for each HEXTE cluster.
- The child display has three panels, the top two show the lightcurves from the two HEXTE clusters, and the bottom panel shows the lightcurves overlaid.
- On the child display (strip chart), the solid-colored segments are on-source bins, while the outlined segments are background-pointing bins. If HEXTE is rocking, you will see alternating blocks.
- Both displays are updated every 16 seconds.
Main window:
Options buttons:
File:
- Freeze [to stop scrolling of data, select again to resume.]
- ASCII save/email [ email yourself an ascii dump of the lightcurve]
- PostScript Plot save/email [ email yourself a postscript plot of the lightcurve]
- Quit [quits the window.]
Options:
- Strip Chart [highly recommended]
- Sum Energy Bands [choose energy bands to be summed]
- Clear Accum. Every Partition [doesn't integrate] [toggle off to integrate]
- Clear Accum. Now [clears out integration]
- Ring Bell Every New Partition [annoying and useless]
- Newer Data Only [ensures that no old packets are shown with new data]
Child window (Strip Chart):
Options buttons:
File:
Options:
- Sum Energy Bands [choose energy bands to be summed]
- Select bin size: (1,2,4,8, or 16 sec) [allows you to change the amount of time shown on the display. NOTE: unlike the PCA displays, when you change the binning on the HEXTE light curve, it rebins the data already on the screen - no information is lost.]
XTE SOF - xtesof@xtesof.nascom.nasa.gov
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