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GRAVITY trending system: HEALTH CHECK report
HELP USERS-GUIDE MORE
Last update: 2026-04-16T18:36:12 (UT)
  | now: 2026-04-17T06:08:30 (UT) muc05 QC pipeline: gravity-1.5.4 (installed 2022-03-24)
same group: AT_SC_low AT_SC_med AT_SC_high AT_FT   UT_SC_low UT_SC_med UT_SC_high UT_FT
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
no data | NLT
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scores&comments | 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 1.01 none none  44 tf_visamp_sc12_p1 this | last_yr | all visamp, AT, base line 12, MEDIUM resolution, SC, SPLIT polarimetry
2 •QC1DB MEDIAN 1.01 none none  44 tf_visamp_sc13_p1 this | last_yr | all visamp, AT, base line 13, MEDIUM resolution, SC, SPLIT polarimetry
3 •QC1DB MEDIAN 1 none none  44 tf_visamp_sc14_p1 this | last_yr | all visamp, AT, base line 14, MEDIUM resolution, SC, SPLIT polarimetry
4 •QC1DB MEDIAN 1 none none  44 tf_visamp_sc23_p1 this | last_yr | all visamp, AT, base line 23, MEDIUM resolution, SC, SPLIT polarimetry
5 •QC1DB MEDIAN 1 none none  44 tf_visamp_sc24_p1 this | last_yr | all visamp, AT, base line 24, MEDIUM resolution, SC, SPLIT polarimetry
6 •QC1DB MEDIAN 0.997 none none  44 tf_visamp_sc34_p1 this | last_yr | all visamp, AT, base line 34, MEDIUM resolution, SC, SPLIT polarimetry
7 •QC1DB MEDIAN 0.993 none none  109 tf_visamp_sc12_p1 this | last_yr | all visamp, AT, base line 12, MEDIUM resolution, SC, COMBINED polarimetry
8 •QC1DB MEDIAN 0.983 none none  109 tf_visamp_sc13_p1 this | last_yr | all visamp, AT, base line 13, MEDIUM resolution, SC, COMBINED polarimetry
9 •QC1DB MEDIAN 0.858 none none  109 tf_visamp_sc14_p1 this | last_yr | all visamp, AT, base line 14, MEDIUM resolution, SC, COMBINED polarimetry
10 •QC1DB MEDIAN 0.977 none none  109 tf_visamp_sc23_p1 this | last_yr | all visamp, AT, base line 23, MEDIUM resolution, SC, COMBINED polarimetry
11 •QC1DB MEDIAN 0.908 none none  109 tf_visamp_sc24_p1 this | last_yr | all visamp, AT, base line 24, MEDIUM resolution, SC, COMBINED polarimetry
12 •QC1DB MEDIAN 0.85 none none  109 tf_visamp_sc34_p1 this | last_yr | all visamp, AT, base line 34, MEDIUM resolution, SC, COMBINED polarimetry
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc12_p1•
median:1.01none
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 2
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc13_p1•
median:1.01none
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 3
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc14_p1•
median:1none
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 4
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc23_p1•
median:1none
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 5
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc24_p1•
median:1none
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 6
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc34_p1•
median:0.997none
thresholds:none 
N_data plotted:44
[click plot for closeup]
Plot 7
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc12_p1•
median:0.993none
thresholds:none 
N_data plotted:109
[click plot for closeup]
Plot 8
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc13_p1•
median:0.983none
thresholds:none 
N_data plotted:109
[click plot for closeup]
Plot 9
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc14_p1•
median:0.858none
thresholds:none 
N_data plotted:109
[click plot for closeup]
Plot 10
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc23_p1•
median:0.977none
thresholds:none 
N_data plotted:109
[click plot for closeup]
Plot 11
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc24_p1•
median:0.908none
thresholds:none 
N_data plotted:109
[click plot for closeup]
Plot 12
scores: not implemented
data source:gravity_vis
(QC1 database)
dataset:tf_visamp_sc34_p1•
median:0.85none
thresholds:none 
N_data plotted:109
[click plot for closeup]
This plot

Transfer function visibility amplitudes per baseline from night-time calibrator measurements.  

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