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Health Check monitor

 

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HealthCheck Monitor
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FULL reports
FLAMES/GIRAFFE:
system efficiency
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GIRAFFE trending system: FULL report
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Last update: 2014-04-23T16:32:10 (UT)
  | now: 2014-04-24T02:47:48 (UT) muc02 QC pipeline: giraf-2.12 (installed 2014-03-18)
same group: Efficiency per_WLN
General news:
GIRAFFE news:  
Report news:
DATE*: [?] 2014-04-17
report | NLT
2014-04-18
report | NLT
2014-04-19
report | NLT
2014-04-20
report | NLT
2014-04-21
report | NLT
2014-04-22
report | NLT
2014-04-23
no data | NLT
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scores&comments | history: all data plotted here | plot tutorial ... | contact               [?]
*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Marked green: ETC values (for the new CCD).
Plot
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Symb
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Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB no MEAN 0.0299 fraction VAL0.015,0.07 97 mean_effic all (full time range) Efficiency at central wavelength (Argus, HR grating): H447.1A
2 QC1DB no MEAN 0.0398 fraction VAL0.03,0.10 95 mean_effic all (full time range) H651.5B
3 QC1DB no MEAN 0.243 fraction VAL0.11,0.40 89 mean_effic all (full time range) H875.7
4 QC1DB no MEAN 0.0416 fraction VAL0.02,0.07 122 mean_effic all (full time range) Argus, LR grating: L427.2
5 QC1DB no MEAN 0.0531 fraction VAL0.03,0.09 110 mean_effic all (full time range) L543.1
6 QC1DB no MEAN 0.137 fraction VAL0.04,0.20 130 mean_effic all (full time range) L881.7
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: OPSLOG data are included
Plot 1
scores: 1|
data source:giraffe_std
(QC1 database)
dataset:mean_effic
mean:0.0299fraction
fixed thresholds:0.015...0.07fraction
N_data plotted:97
[click on plot for closeup]
Plot 2
scores: 1|
data source:giraffe_std
(QC1 database)
dataset:mean_effic
mean:0.0398fraction
fixed thresholds:0.03...0.1fraction
N_data plotted:95
[click on plot for closeup]
Plot 3
scores: 1|
data source:giraffe_std
(QC1 database)
dataset:mean_effic
mean:0.243fraction
fixed thresholds:0.11...0.4fraction
N_data plotted:89
[click on plot for closeup]
Plot 4
scores: 1|
data source:giraffe_std
(QC1 database)
dataset:mean_effic
mean:0.0416fraction
fixed thresholds:0.02...0.07fraction
N_data plotted:122
[click on plot for closeup]
Plot 5
scores: 1|
data source:giraffe_std
(QC1 database)
dataset:mean_effic
mean:0.0531fraction
fixed thresholds:0.03...0.09fraction
N_data plotted:110
[click on plot for closeup]
Plot 6
scores: 1|
data source:giraffe_std
(QC1 database)
dataset:mean_effic
mean:0.137fraction
fixed thresholds:0.04...0.2fraction
N_data plotted:130
[click on plot for closeup]
This plot

This is the Health Check plot to monitor the system efficiency of GIRAFFE. It is based on measurements of a flux standard star with the Argus IFU under photometric conditions. There are three settings taken with the low-resolution grating (L427.2, L543.1, L881.7) and three more with the high-resolution grating (H447.1A, H651.5B, H875.7). These data are taken approximately every month. Find a chromatic plot of these values here.

They are calibrated here with the robotic lamp flats. The flats are used only for the localization solution (required for the extraction). Contrary to the usual reduction, the extracted flat-field is not divided into the standard star spectrum, in order not to corrupt the efficiency calculation.

We display the QC1 parameter mean_effic which is the ratio of detected photons and the incident photons. The signal from all fibres (excluding SKY and SIMCAL) is combined and averaged.

For reference we also plot the ETC values which come as a mean value over the wavelength range of the setting. Check out the ETC for more.

The green line marks the decreasing trend for the HR settings before the recoating of the grating in 2011-06. Efficiency dropped by -0.0033 per year in H447.1A and in H651.5B.  


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