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VISIR trending system: HEALTH CHECK report
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Last update: 2015-02-12T14:05:12 (UT)
  | now: 2026-04-17T06:09:56 (UT) muc03 QC pipeline: visir-4.0.3 (installed 2015-01-09)
same group: sensitivity   N_band Q_band
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.
VISIR 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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*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?
Symb
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Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 4.55 mJy/1hr none  44 sensit this | last_yr | all sensitivity for the SF, pfov=0.075
2 QC1DB MEDIAN 7.95 mJy/1hr none  39 sensit this | last_yr | all sensitivity for the IF, pfov=0.127
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:sensit
median:4.55mJy/1hr
thresholds:none 
N_data plotted:44
[click on plot for closeup]
Plot 2
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:sensit
median:7.95mJy/1hr
thresholds:none 
N_data plotted:39
[click on plot for closeup]
This plot

Historical measurements of the sensitivity parameter. Only data taken with the PAH1 filter are selected. The plot is separated into small-field (SF) pixel field of view (0.075 arcsec/pixel) and intermediate-field (IF) pixel field of view (0.127 arcsec/pixel).

Sensitivity is determined by observing a standard star and estimating the limiting flux expected in 1 hour "on-source" integration of a point-source detected with S/N of 10. It is given in units mJy at 10 sigma in 1 hr.  


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