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VISIR trending system: HEALTH CHECK report
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Last update: 2026-04-17T02:02:26 (UT)
  | now: 2026-04-17T08:14:32 (UT) muc03 QC pipeline: visir-4.4.3 (installed 2023-04-27)
same group: N_band Q_band
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DATE*: [?] 2026-04-10
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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 2.65e+04 ADU/Jy none  42 conver this | last_yr | all conversion factor with Q1 filter, pfov=0.0453
2 QC1DB MEDIAN 2.74e+04 ADU/Jy none  27 conver this | last_yr | all conversion factor with Q2 filter, pfov=0.0453
3 QC1DB MEDIAN 4.08e+03 ADU/Jy none  20 conver this | last_yr | all conversion factor with Q3 filter, pfov=0.0453
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:conver
median:2.65e+04ADU/Jy
thresholds:none 
N_data plotted:42
[click plot for closeup]
Plot 2
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:conver
median:2.74e+04ADU/Jy
thresholds:none 
N_data plotted:27
[click plot for closeup]
Plot 3
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:conver
median:4.08e+03ADU/Jy
thresholds:none 
N_data plotted:20
[click plot for closeup]
This plot

Measurements of the conversion factor from imaging standard star observations. The three Q band filters are shown. Note that starting with P95 only small-field (SF) observations with 0.0453 arcsec/pixel are offered.

The conversion factor describes the conversion between ADU and Jy. It is computed as: F(tot.observed) / F(model) [ADU/Jy], where F corresponds to flux and F(model) is the model predicted flux of the standard star from a catalog.  


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