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CRIRES trending system: HISTORY report
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Last update: 2014-01-12T03:47:27 (UT)
same group: system_effic
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 0.0454 e-/photon VAL0.01,0.12 16 med_through this | last_yr | all throughput, WREF=1087.3, chip 3
2 QC1DB MEDIAN 0.0487 e-/photon VAL0.01,0.12 16 med_through this | last_yr | all throughput, WREF=1504.8, chip 3
3 QC1DB MEDIAN 0.0665 e-/photon VAL0.01,0.12 14 med_through this | last_yr | all throughput, WREF=2205.0, chip 3
4 QC1DB MEDIAN 0.0612 e-/photon VAL0.01,0.12 15 med_through this | last_yr | all throughput, WREF=3611.0, chip 3
5 QC1DB MEDIAN 0.0857 e-/photon VAL0.01,0.12 17 med_through this | last_yr | all throughput, WREF=5050.4, chip 3
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:crires_std
(QC1 database)
dataset:med_through
median:0.0454e-/photon
fixed thresholds:0.01...0.12e-/photon
N_data plotted:16
[click on plot for closeup]
Plot 2
data source:crires_std
(QC1 database)
dataset:med_through
median:0.0487e-/photon
fixed thresholds:0.01...0.12e-/photon
N_data plotted:16
[click on plot for closeup]
Plot 3
data source:crires_std
(QC1 database)
dataset:med_through
median:0.0665e-/photon
fixed thresholds:0.01...0.12e-/photon
N_data plotted:14
[click on plot for closeup]
Plot 4
data source:crires_std
(QC1 database)
dataset:med_through
median:0.0612e-/photon
fixed thresholds:0.01...0.12e-/photon
N_data plotted:15
[click on plot for closeup]
Plot 5
data source:crires_std
(QC1 database)
dataset:med_through
median:0.0857e-/photon
fixed thresholds:0.01...0.12e-/photon
N_data plotted:17
[click on plot for closeup]
This plot

Trending plots for efficiency measurements (throughput in e-/photon in per cent) with spectro-phomtometric standard stars. Throughput is defined as the ratio of the measured electrons (e-/sec/pixel) and the expected photon flux (photons/sec/pixel).

Pipeline versions earlier than 2.1.x contained a bug for the efficiency calculation. This has been fixed in April 2011. Older values in the QC1 database have been corrected. The conversion factor between old and new values is about 2.4/100.

The overall instrument efficiency is measured with standard star observations in 5 dedicated settings: 1087.3, 1504.8, 2205.0, 3611.0, and 5050.4 nm reference wavelength. These plots show the median throughput for chip 3.  


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