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GIRAFFE trending system: HEALTH CHECK plot
Last update: 2009-01-08T01:16:38 (UT)
| now: 2009-01-08T13:34:23 (UT)
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same group: SIM-lamp FF-lamp ARC-lamp   NAS-lamp
no OPSLOG data
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Plot
?		 Symb
?		 Source
*		 OPS?
**		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB no MEAN 425.98383 counts/sec VAL100,600 18 flux this | last_yr | all NASMYTH flat lamp, Argus L543.1 setting
2 •QC1DB no none   counts/sec none   65 flux this | last_yr | all flux vs. wavelength, for all Argus LR
2 •QC1DB no none   counts/sec none   34 flux this | last_yr | all same, for all Argus HR
2 •QC1DB no none   counts/sec none   18 flux this | last_yr | all same, for Argus L543.1
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

This is the trending plot for the stability of the GIRAFFE flat field calibration lamp. It is based on NASMYTH flats (flattype=NAS) taken in the L543.1 setting of the Argus IFU.

These data are acquired everytime the standard star efficiency monitoring is executed (every 1-2 months). Furthermore it may also be triggered by a SCIENCE OB and a standard star exposure.

The average flux is obtained by dividing the average signal in the first raw file by the EXPTIME.

There is currently no opslog entry for NASMYTH flats and therefore no Paranal entries.

The last plot in the trending report collects all existing nasmyth lamp data for Argus, to give an indication about the wavelength dependency of the lamp efficiency.  

General information

Click on any of the plots to see a close-up version. The latest date is indicated on top of the plot, data points belonging to that date are specially marked.

If configured,

  • statistical averages are indicated by a solid line, and thresholds by broken lines
  • outliers are marked by a red asterisk. They are defined as data points outside the threshold lines
  • "aliens" (= data points outside the plot Y limits) are marked by a red arrow (↑ or ↓)
  • you can download the data for each parameter set if the 'Data downloads' link shows up