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CRIRES trending system: HISTORY plot
Last update: 2010-10-10T04:16:28 (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
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Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 3.43759 ADU VAL3.3,3.65 74 ron23 this | last_yr | all RON, chip 1, DIT=1
2 QC1DB MEDIAN 3.61303 ADU VAL3.4,3.9 74 ron23 this | last_yr | all RON, chip 2, DIT=1
3 QC1DB MEDIAN 4.01999 ADU VAL3.8,6.0 74 ron23 this | last_yr | all RON, chip 3, DIT=1
4 QC1DB MEDIAN 4.51893 ADU VAL4.2,7.0 74 ron23 this | last_yr | all RON, chip 4, DIT=1
5 QC1DB MEDIAN 1.85353 ADU VAL1.5,2.0 92 ron23 this | last_yr | all RON, chip 1, DIT=300
6 QC1DB MEDIAN 2.2732 ADU VAL1.75,2.4 94 ron23 this | last_yr | all RON, chip 2, DIT=300
7 QC1DB MEDIAN 2.3877 ADU VAL1.85,2.7 94 ron23 this | last_yr | all RON, chip 3, DIT=300
8 QC1DB MEDIAN 2.18866 ADU VAL1.7,2.5 92 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)
parameter | dataset:ron23
median:3.43759ADU
fixed thresholds:3.3...3.65ADU
N_data:74
[click on plot for closeup]
Plot 2
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:3.61303ADU
fixed thresholds:3.4...3.9ADU
N_data:74
[click on plot for closeup]
Plot 3
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:4.01999ADU
fixed thresholds:3.8...6.0ADU
N_data:74
[click on plot for closeup]
Plot 4
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:4.51893ADU
fixed thresholds:4.2...7.0ADU
N_data:74
[click on plot for closeup]
Plot 5
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:1.85353ADU
fixed thresholds:1.5...2.0ADU
N_data:92
[click on plot for closeup]
Plot 6
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:2.2732ADU
fixed thresholds:1.75...2.4ADU
N_data:94
[click on plot for closeup]
Plot 7
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:2.3877ADU
fixed thresholds:1.85...2.7ADU
N_data:94
[click on plot for closeup]
Plot 8
data source:crires_dark
(QC1 database)
parameter | dataset:ron23
median:2.18866ADU
fixed thresholds:1.7...2.5ADU
N_data:92
[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