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VISIR trending system: HEALTH CHECK report
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Last update: 2015-02-12T16:10:49 (UT)
  | now: 2023-10-01T01:26:52 (UT) muc03 QC pipeline: visir-4.0.3 (installed 2015-01-09)
same group: read-noise dark flat-flux nbadpix det-temp
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.
VISIR news:  
Report news:
DATE*: [?] 2023-09-24
no data | NLT
2023-09-25
no data | NLT
2023-09-26
no data | NLT
2023-09-27
no data | NLT
2023-09-28
no data | NLT
2023-09-29
no data | NLT
2023-09-30
no data | NLT
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scores&comments | history ... | plot tutorial ... | contact                 daily/often; important to check     [?]
*Date on this monitor changes at 21:00 UT
Print: 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 57.5 ADU none  64 ron2 this | last_yr | all read-out noise of the imaging detector
2 QC1DB MEDIAN 20.3 ADU none  125 ron2 this | last_yr | all read-out noise of the spectroscopic detector
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:visir_dark_img
(QC1 database)
dataset:ron2
median:57.5ADU
thresholds:none 
N_data plotted:64
[click on plot for closeup]
Plot 2
scores: not implemented
data source:visir_dark_spc
(QC1 database)
dataset:ron2
median:20.3ADU
thresholds:none 
N_data plotted:125
[click on plot for closeup]
This plot

Historical measurements of the read-out noise (RON) with the pre-upgrade detectors, both for imaging and for spectroscopy.

RON is determined from the raw(3)-raw(2) difference frame. Data points for the spectroscopic detector include frames taken in MR and in HRS (which slightly differ in RON).  


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