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VISIR trending system: HEALTH CHECK report
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Last update: 2015-02-12T10:16:54 (UT)
  | now: 2024-02-27T00:43:32 (UT) muc03 QC pipeline: visir-4.0.3 (installed 2015-01-09)
same group: conv_factor
General news: NOTE: The Health Check and calChecker services are moved to qcFlow on an instrument by instrument basis. The current pages will not be updated any longer once the move has been finished.
VISIR news:  
Report news:
DATE*: [?] 2024-02-20
report | NLT
2024-02-21
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2024-02-22
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2024-02-23
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2024-02-24
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report | NLT
2024-02-26
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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 2.72e+05 ADU/Jy none  44 conver this | last_yr | all conversion factor for the SF, pfov=0.075
2 QC1DB MEDIAN 2.92e+04 ADU/Jy none  39 conver this | last_yr | all conversion factor 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:conver
median:2.72e+05ADU/Jy
thresholds:none 
N_data plotted:44
[click on plot for closeup]
Plot 2
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:conver
median:2.92e+04ADU/Jy
thresholds:none 
N_data plotted:39
[click on plot for closeup]
This plot

Historical values of the conversion factor from imaging standard star observations using the pre-upgrade detector. 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).

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