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CRIRES trending system: HISTORY plot
Last update: 2011-10-09T03:46:30 (UT)
same group: darkmed ron_raw
close window history: 2007 2008 2009 2010   2011   2012   2013 2014   HEALTH FULL
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*Date on this monitor changes at 21:00 UT
Print: Information and research:
- 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 3.46578 ADU VAL3.3,3.65 88 ron23 this | last_yr | all RON, chip 1, DIT=1
2 QC1DB MEDIAN 3.58799 ADU VAL3.4,3.9 88 ron23 this | last_yr | all RON, chip 2, DIT=1
3 QC1DB MEDIAN 3.6785 ADU VAL3.5,6.5 88 ron23 this | last_yr | all RON, chip 3, DIT=1
4 QC1DB MEDIAN 4.13163 ADU VAL4.0,8.0 88 ron23 this | last_yr | all RON, chip 4, DIT=1
5 QC1DB MEDIAN 1.74694 ADU VAL1.5,2.0 105 ron23 this | last_yr | all RON, chip 1, DIT=300
6 QC1DB MEDIAN 2.16483 ADU VAL1.75,2.5 105 ron23 this | last_yr | all RON, chip 2, DIT=300
7 QC1DB MEDIAN 2.23433 ADU VAL1.85,3.0 104 ron23 this | last_yr | all RON, chip 3, DIT=300
8 QC1DB MEDIAN 2.09101 ADU VAL1.7,3.2 105 ron23 this | last_yr | all RON, chip 4, DIT=300
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:crires_dark
(QC1 database)
dataset:ron23
median:3.46578ADU
fixed thresholds:3.3...3.65ADU
N_data plotted:88
[click on plot for closeup]
Plot 2
data source:crires_dark
(QC1 database)
dataset:ron23
median:3.58799ADU
fixed thresholds:3.4...3.9ADU
N_data plotted:88
[click on plot for closeup]
Plot 3
data source:crires_dark
(QC1 database)
dataset:ron23
median:3.6785ADU
fixed thresholds:3.5...6.5ADU
N_data plotted:88
[click on plot for closeup]
Plot 4
data source:crires_dark
(QC1 database)
dataset:ron23
median:4.13163ADU
fixed thresholds:4.0...8.0ADU
N_data plotted:88
[click on plot for closeup]
Plot 5
data source:crires_dark
(QC1 database)
dataset:ron23
median:1.74694ADU
fixed thresholds:1.5...2.0ADU
N_data plotted:105
[click on plot for closeup]
Plot 6
data source:crires_dark
(QC1 database)
dataset:ron23
median:2.16483ADU
fixed thresholds:1.75...2.5ADU
N_data plotted:105
[click on plot for closeup]
Plot 7
data source:crires_dark
(QC1 database)
dataset:ron23
median:2.23433ADU
fixed thresholds:1.85...3.0ADU
N_data plotted:104
[click on plot for closeup]
Plot 8
data source:crires_dark
(QC1 database)
dataset:ron23
median:2.09101ADU
fixed thresholds:1.7...3.2ADU
N_data plotted:105
[click on plot for closeup]
This plot

Trending plot for CRIRES RON as determined from DARK exposures.

The read-out noise is measured from the difference of the 3rd and 2nd dark image using the following procedure:
- generate 100 13x13 pixel windows
- compute the pixel standard deviation in each window
- the read-out noise is the median of these measurements multiplied with sqrt(NDIT/2).

The trending shows RON from DIT=1sec and DIT=300sec exposures for all four chips.  


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