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Health Check monitor

 

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GRAVITY trending system: HEALTH CHECK report
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Last update: 2026-04-16T18:30:45 (UT)
  | now: 2026-04-17T09:43:59 (UT) muc05 QC pipeline: gravity-1.5.4 (installed 2022-03-24)
same group: dark_level dark_rms   badpix acqcam
General news: NOTE: The Health Check and calChecker services have been moved to qcFlow. These pages are only maintained for comparison and will be removed in 2026.
GRAVITY news:  
Report news:
DATE*: [?] 2026-04-10
report | NLT
2026-04-11
report | NLT
2026-04-12
report | NLT
2026-04-13
report | NLT
2026-04-14
report | NLT
2026-04-15
report | NLT
2026-04-16
report | NLT
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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 6.61e+04 none VAL0,80000 514 numpix_zero_acq this | last_yr | all number of pixels with 0 level in acquisition camera
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:gravity_dark
(QC1 database)
dataset:numpix_zero_acq
median:6.61e+04none
fixed thresholds:0...80000none
N_data plotted:514
[click plot for closeup]
This plot

Trending plot for the number of pixels on the detector of the acquisition camera that have 0 value.

Typically, not more than 6% of all pixels have 0 ADU in a dark exposure; they are potentially not responding.

Note that as of 2017-03-24 not all pixels of the acquisition detector are saved. The image has a size of 1000x1000 instead of 2048x1536.  


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