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UVES trending system: HISTORY report
Last update: 2012-05-09T12:08:50 (UT)
same group: Median Master_RON Raw_RON Struct_X Struct_Y Pattern_noise
close window history: 2000 2001 2002 2003 2004   2005   2006   2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024   HEALTH FULL
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*Date on this monitor changes at 21:00 UT
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Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB MEDIAN 0.121 ADU none   77 struct_row this | last_yr | all structure of master BIAS frame in X direction, BLUE CCD, readout mode 225kHz,1x1,low
2 •QC1DB MEDIAN 0.045 ADU none   126 struct_row this | last_yr | all same, for REDL CCD
3 •QC1DB MEDIAN 0.322 ADU none   126 struct_row this | last_yr | all same, for REDU CCD
4 •QC1DB MEDIAN 0.312 ADU none   76 struct_row this | last_yr | all same as Fig. 1, for readout mode 50kHz,2x2,high
5 •QC1DB MEDIAN 0.157 ADU none   77 struct_row this | last_yr | all same, for REDL CCD
6 •QC1DB MEDIAN 1.169 ADU none   77 struct_row this | last_yr | all same, for REDU CCD
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:uves_bias
(QC1 database)
dataset:struct_row•
median:0.121ADU
thresholds:none 
N_data plotted:77
[click on plot for closeup]
Plot 2
data source:uves_bias
(QC1 database)
dataset:struct_row•
median:0.045ADU
thresholds:none 
N_data plotted:126
[click on plot for closeup]
Plot 3
data source:uves_bias
(QC1 database)
dataset:struct_row•
median:0.322ADU
thresholds:none 
N_data plotted:126
[click on plot for closeup]
Plot 4
data source:uves_bias
(QC1 database)
dataset:struct_row•
median:0.312ADU
thresholds:none 
N_data plotted:76
[click on plot for closeup]
Plot 5
data source:uves_bias
(QC1 database)
dataset:struct_row•
median:0.157ADU
thresholds:none 
N_data plotted:77
[click on plot for closeup]
Plot 6
data source:uves_bias
(QC1 database)
dataset:struct_row•
median:1.169ADU
thresholds:none 
N_data plotted:77
[click on plot for closeup]
This plot

This is the trending report for the QC parameters derived from UVES BIAS frames.

Since 2021 the uves_cal_mbias recipe is executed with the --pd_compute=TRUE command line option that performs a 2D Fourier transform of each of the five raw BIAS frames and calculates the (not robust) standard deviation and (robust) MAD (median absolute deviation). Both parameters are ingested into the QC1 DB, and the maximum of the five std/stdMAD values (max_ratio) is monitored here .

The purpose of the analysis is to discriminate statistical noise, and non-statistical noise.

Find more information about UVES BIAS frames here.
Other QC parameters related to detector properties (like linearity, gain) are trended here.  

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