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CRIRES trending system: HISTORY report
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Last update: 2014-04-13T03:46:40 (UT)
same group: flat Hal_IR   ThAr
close window history: 2007 2008 2009 2010 2011 2012 2013   2014   HEALTH
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*Date on this monitor changes at 21:00 UT
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- png file - advanced studies: QC1 browser | QC1 plotter
Plot
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Symb
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Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 517 ADU/sec VAL200,950 95 mean_flux this | last_yr | all mean flux, chip 3, WREF=1090.4
2 QC1DB MEDIAN 255 ADU/sec VAL75,500 91 mean_flux this | last_yr | all mean flux, chip 3, WREF=3218.6
3 QC1DB MEDIAN 400 ADU/sec VAL100,800 91 mean_flux this | last_yr | all mean flux, chip 3, WREF=4092.9
4 QC1DB MEDIAN 0.0906 ADU VAL0.08,0.13 95 rms_master this | last_yr | all rms, chip 3, WREF=1090.4
5 QC1DB MEDIAN 0.125 ADU VAL0.08,0.145 91 rms_master this | last_yr | all rms, chip 3, WREF=3218.6
6 QC1DB MEDIAN 0.078 ADU VAL0.05,0.1 91 rms_master this | last_yr | all rms, chip 3, WREF=4092.9
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:crires_flat
(QC1 database)
dataset:mean_flux
median:517ADU/sec
fixed thresholds:200...950ADU/sec
N_data plotted:95
[click on plot for closeup]
Plot 2
data source:crires_flat
(QC1 database)
dataset:mean_flux
median:255ADU/sec
fixed thresholds:75...500ADU/sec
N_data plotted:91
[click on plot for closeup]
Plot 3
data source:crires_flat
(QC1 database)
dataset:mean_flux
median:400ADU/sec
fixed thresholds:100...800ADU/sec
N_data plotted:91
[click on plot for closeup]
Plot 4
data source:crires_flat
(QC1 database)
dataset:rms_master
median:0.0906ADU
fixed thresholds:0.08...0.13ADU
N_data plotted:95
[click on plot for closeup]
Plot 5
data source:crires_flat
(QC1 database)
dataset:rms_master
median:0.125ADU
fixed thresholds:0.08...0.145ADU
N_data plotted:91
[click on plot for closeup]
Plot 6
data source:crires_flat
(QC1 database)
dataset:rms_master
median:0.078ADU
fixed thresholds:0.05...0.1ADU
N_data plotted:91
[click on plot for closeup]
This plot

Trending plots monitoring the stability of flat fields.

Daily monitoring of flats is executed for three settings with reference wavelengths 1090.4, 3218.6, and 4092.9 nm. Only data for chip 3 are plotted here because the structure of the flats is unstable especially for chips 1 and 4.

The first row shows the mean flux level of the flats. A sudden decrease of the level below the typical variations could indicate a problem (e.g. with the halogen lamp). The second row has the rms measured over the illuminated area. A change would indicate a change in the overall structure of the flat.

As of March 2010, Paranal values are not plotted for rms because they deviate strongly from QC Garching values (because of different recipe parameters).  


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