mirror sites: PL (internal link) HQ     [?]

Health Check monitor
 
CAL | HC | QC
HealthCheck Monitor
   HOME | UsersGuide
  sl icon ALL INSTRUMENTS
 
all KPI reports
GRAVITY:
score overview
 
Instrument Performance
KPI
 
Current Health Checks
Daytime...
detector
flat profile
flat flux
wavelength
 
P2VM avg
P2VM min coherence
P2VM coherence
 
piezo
 
Night-time...
TF visamp
closure phase
pol phase diff
transmission
 
QC GRAVITY
Other HC:
UT1
 
UT2
 
UT3
 
UT4
 
VLTI
 
QC links:
QC home
Data Products
calChecker
HealthChecks
[best viewing with style sheets and javascript enabled]
        [page auto-refreshes after 300 sec]   [stop | on]            [press Ctrl+Shift+R to enforce refresh of scores, dates and news]
GRAVITY trending system: HEALTH CHECK report
HELP USERS-GUIDE MORE
Last update: 2017-05-16T18:28:35 (UT)
  | now: 2026-04-23T19:34:27 (UT) muc05 QC pipeline: gravity-1.0.2 (installed 2017-03-23)
same group: dark_low dark_med dark_high   bpix+gain_low bpix+gain_med bpix+gain_high 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*: [?] 2026-04-16
report | NLT 		2026-04-17
report | NLT 		2026-04-18
report | NLT 		2026-04-19
report | NLT 		2026-04-20
report | NLT 		2026-04-21
report | NLT 		2026-04-22
report | NLT
r...
Raw CAL displays:
raw raw raw raw raw raw raw
P...
CAL product quality:
products products products products products products products
 
transfer   ngas [?]

scores&comments | history ... | plot tutorial ... | contact               [?] 		*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 0 none VAL0,2 15 badpix_ft this | last_yr | all bad pixels, Fringe Tracker (FT) detector, SPLIT polarimetry
2 •QC1DB MEDIAN 2 none VAL0,5 15 badpix_sc this | last_yr | all bad pixels, Science Camera (SC) detector, SPLIT polarimetry
3 •QC1DB MEDIAN 0 none VAL0,2 12 badpix_ft this | last_yr | all bad pixels, Fringe Tracker (FT) detector, COMBINED polarimetry
4 •QC1DB MEDIAN 1 none VAL0,5 12 badpix_sc this | last_yr | all bad pixels, Science Camera (SC) detector, COMBINED polarimetry
5 •QC1DB MEDIAN 26.2 ADU/e none  15 gainmean_ft this | last_yr | all gain, Fringe Tracker (FT) detector, SPLIT polarimetry
6 •QC1DB MEDIAN 1.16 ADU/e none  15 gainmean_sc this | last_yr | all gain, Science Camera (SC) detector, SPLIT polarimetry
7 •QC1DB MEDIAN 25.5 ADU/e none  12 gainmean_ft this | last_yr | all gain, Fringe Tracker (FT) detector, COMBINED polarimetry
8 •QC1DB MEDIAN 0.914 ADU/e none  12 gainmean_sc this | last_yr | all gain, Science Camera (SC) detector, COMBINED polarimetry
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: 1|
data source:gravity_p2vm
(QC1 database)
dataset:badpix_ft•
median:0none
fixed thresholds:0...2none
N_data plotted:15
[click on plot for closeup]
Plot 2
scores: 1|
data source:gravity_p2vm
(QC1 database)
dataset:badpix_sc•
median:2none
fixed thresholds:0...5none
N_data plotted:15
[click on plot for closeup]
Plot 3
scores: 2|
data source:gravity_p2vm
(QC1 database)
dataset:badpix_ft•
median:0none
fixed thresholds:0...2none
N_data plotted:12
[click on plot for closeup]
Plot 4
scores: 2|
data source:gravity_p2vm
(QC1 database)
dataset:badpix_sc•
median:1none
fixed thresholds:0...5none
N_data plotted:12
[click on plot for closeup]
Plot 5
scores: no current data
data source:gravity_p2vm
(QC1 database)
dataset:gainmean_ft•
median:26.2ADU/e
thresholds:none 
N_data plotted:15
[click on plot for closeup]
Plot 6
scores: no current data
data source:gravity_p2vm
(QC1 database)
dataset:gainmean_sc•
median:1.16ADU/e
thresholds:none 
N_data plotted:15
[click on plot for closeup]
Plot 7
scores: no current data
data source:gravity_p2vm
(QC1 database)
dataset:gainmean_ft•
median:25.5ADU/e
thresholds:none 
N_data plotted:12
[click on plot for closeup]
Plot 8
scores: no current data
data source:gravity_p2vm
(QC1 database)
dataset:gainmean_sc•
median:0.914ADU/e
thresholds:none 
N_data plotted:12
[click on plot for closeup]
This plot

Trending plot for number of bad pixels and gain of the Fringe Tracker (FT) and Science Camera (SC) detectors. Plotted are data taken with LOW spectral resolution.

NOTE: gain values show rather strong fluctuation which is likely due to the measuring method. This needs to be revised.  

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