VIMOS trending system: HISTORY plot
Last update: 2008-01-13T05:34:25 (UT)
same group: FFLAMP HELAMP NELAMP ARLAMP   IMGFLT
close window history: 2005 2006   2007   2008   HEALTH
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Plot
[info]		 Symbol
[info]		 Source* Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
1 •QC1DB none   ADU/s none   83 this | last_yr | all Q2, flux from IFU flats
2 •QC1DB none   ADU/s none   83 this | last_yr | all Q1, flux from IFU flats
3 •QC1DB none   ADU/s none   83 this | last_yr | all Q3, flux from IFU flats
4 •QC1DB none   ADU/s none   83 this | last_yr | all Q4, flux from IFU flats
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

Trending plot for the flux in IFU flats.

The flat-field flux measures the performance of the continuum lamps used for IFU spectroscopic flats (QTH50). The same lamp is also used for MOS spectroscopic flats with HR grisms. The values should show a smooth trending without sudden jumps.

Only day-time measurements with HR_orange are plotted. These are usually measured daily.  

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