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Standard 1 FFT Power Spectrum
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FAQ |
Standard 1 FFT Power Spectrum Display
- Shows power spectra calculated using FFT, from 0 to 4 Hz.
- Results are normalized using the Leahy method.
- This display updates every 128 seconds.
At the top is a bar of options controls.
Options buttons:
File:
- Freeze [to stop scrolling of data, select again to resume.]
- Save or E-mail File [Allows you to email an ascii dump
or postscript plot to yourself.
- Quit [quits the window.]
Select: [to choose what data is displayed]
- Sum all Good Xenon [default, shows the count rate of the sum of all PCUs.]
- Sum all Very Large Events
- Sum all Propane Events
- Sum all Other Events [events that do not fall into the above categories.]
- PCU 1 ... 5 [shows only data from that PCU. Used for diagnostic.]
- all 5 PCUs [overlays data from each PCU, color coded.]
Y axis [to set y-axis scale]
- Log - zero min [logarithmic scale, default, minimum is set to zero.]
- Log - actual min
- Linear - zero min [linear scale, minimum is set to zero.]
- Linear - actual min
Display:
- Live [clear data between each partition]
- Integrated & Averaged [accumulate and average data]
- Late Data [pop up a window when data is late]
- Strip Chart [show late data graphically]
Integrate and Average:
- Start [start accumulating data]
- Stop [stop accumulating data, use for excluding occultation data]
- Clear [clears and restarts the integration]
XTE SOF - xtesof@xtesof.nascom.nasa.gov
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