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UVES:
parasitic light
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UVES trending system: HEALTH CHECK report
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Last update: 2024-05-27T06:25:54 (UT)
  | now: 2024-05-27T18:34:02 (UT) muc02 QC pipeline: uves-6.1.11 (installed 2023-06-22)
same group: Std_Modes
General news: NOTE: The Health Check and calChecker services are moved to qcFlow on an instrument by instrument basis. The current pages will not be updated any longer once the move has been finished.
The links to KMOS, UVES, and ESPRESSO have been moved to a new section (qcFlow operational) at the lower part of the navigation bar.
UVES news:  
Report news:
DATE*: [?] 2024-05-20
no data | NLT
2024-05-21
no data | NLT
2024-05-22
no data | NLT
2024-05-23
report | NLT
2024-05-24
report | NLT
2024-05-25
report | NLT
2024-05-26
report | NLT
r...
Raw CAL displays:
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*Date on this monitor changes at 21:00 UT
png: 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 11.9 ADU VAL10.2,13.2 14 current_dark this | last_yr | all dark current in Parasitic Light, readout mode 50kHz,2x2,high; BLUE CCD
3 QC1DB MEDIAN 3.97 ADU VAL2.2,5.8 17 current_dark this | last_yr | all same, for REDL CCD
4 QC1DB MEDIAN 3.31 ADU VAL0.1,4.9 17 current_dark this | last_yr | all same, for REDU CCD
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:uves_dark
(QC1 database)
dataset:current_dark
median:11.9ADU
fixed thresholds:10.2...13.2ADU
N_data plotted:14
[click plot for closeup]
Plot 3
scores: not implemented
data source:uves_dark
(QC1 database)
dataset:current_dark
median:3.97ADU
fixed thresholds:2.2...5.8ADU
N_data plotted:17
[click plot for closeup]
Plot 4
scores: not implemented
data source:uves_dark
(QC1 database)
dataset:current_dark
median:3.31ADU
fixed thresholds:0.1...4.9ADU
N_data plotted:17
[click plot for closeup]
This plot

This is the trending report for UVES QC parameters derived from Parasitic Light frames.
These frames are taken approximately once per month, as a single exposure of 3600 secs in a dark enclosure BUT with the CCD shutter OPEN (as compared to the DARK frames where the CCD shutter is closed). These data are de-biased and combined into a MASTER_DARK, in which the average dark level is measured (in ADU/px/hr). [There are also shorter exposures, they are subject to false results. If you find an outlier, check first the exposure time under 'Data downloads'!]

The purpose of these exposures is to detect low-level contaminating light sources (e.g. LEDs) originating INSIDE the instrument.

The thresholds are set to the values defined by the KPI document from IS These plots describe:

  • the DARK current in master PARASITIC_DARK (or PDARK) frames of the BLUE|REDL|REDU chips in the 1x1 binning, 225kHz, low gain readout mode
  • same for the BLUE|REDL|REDU chips in the 2x2 binning, 50kHz, high gain readout mode.
 
General information

Click on any of the plots to see a close-up version.

The latest date is indicated on top of the plot.

If configured,

  • data points belonging to the latest date are specially marked
  • 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