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XSHOOTER trending system: HEALTH CHECK report
HELP USERS-GUIDE MORE
Last update: 2023-03-23T13:49:55 (UT)
  | now: 2023-03-23T14:46:12 (UT) muc02 QC pipeline: xshoo-3.6.0 (installed 2022-03-21)
same group: efficiency D2_response QTH_response curvature
General news: NOTE: The Health Check and calChecker services will be moved to qcFlow in the course of 2023 on an instrument by instrument basis. The current pages will then not be updated any longer.
XSHOOTER news:  
Report news: 2022-10-13 New QC1 parameter trended and scored.
spectral curvature in 2D product [whummel@eso.org]
DATE*: [?] 2023-03-16
report | NLT 		2023-03-17
report | NLT 		2023-03-18
report | NLT 		2023-03-19
report | NLT 		2023-03-20
report | NLT 		2023-03-21
report | NLT 		2023-03-22
report | NLT
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scores&comments | FULL | history ... | plot tutorial ... | contact | HC_docu... | quality events...               [?] 		*Date on this monitor changes at 21:00 UT
png: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB MEDIAN 49.2 pixel none  410 ADC_y0 this | last_yr | all position of spectrum in product / pixel
2 •QC1DB MEDIAN 7.64 1e-5/pixel VAL2.5,12.5 410 ADC_y1 this | last_yr | all gradient of spectrum in 2D product / 10E-5 pixel
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: no current data
data source:xshooter_telluric
(QC1 database)
dataset:ADC_y0•
median:49.2pixel
thresholds:none 
N_data plotted:410
[click plot for closeup]
Plot 2
scores: 32|
data source:xshooter_telluric
(QC1 database)
dataset:ADC_y1•
median:7.641e-5/pixel
fixed thresholds:2.5...12.51e-5/pixel
N_data plotted:410
[click plot for closeup]
This plot

The 2D product spectrum of nightly acquired telluric standard stars is analyzed. The PSF of the central positive signal (ignoring both neigboring negative signals originating from the NIR double subtraction data reduction method for nodding observation) is fit with a Moffat function for each wavelength bin. The spectral trace is fit by a quadratic function:

trace = ADC_y0 + ADC_y1 * (lam - lamC) + ADC_y2 * (lam - lamC)^2.

The mean position of the spectral trace (ADC_y0) and the spectral slope (ADC_y1) as a measure of the residual optical distortion are monitored, ADC_y1 is scored in addition. ADC_y2 is available in the QC1 DB.  
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