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VISIR trending system: HEALTH CHECK report
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Last update: 2015-09-01T02:01:17 (UT)
  | now: 2024-09-23T17:13:21 (UT) muc03 QC pipeline: visir-4.0.6 (installed 2015-08-05)
same group: background
close window history: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014   2015   HEALTH
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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
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Symb
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Source
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Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEAN 1.55e+03 mJy/1hr VAL0,25000 118 backgd_mean this | last_yr | all mean background for the SF, pfov=0.0453
2 QC1DB MEAN   mJy/1hr VAL0,25000 0 backgd_mean this | last_yr | all mean background for the IF, pfov=0.076
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:backgd_mean
mean:1.55e+03mJy/1hr
fixed thresholds:0...25000mJy/1hr
N_data plotted:118
[click on plot for closeup]
Plot 2
scores: not implemented
data source:visir_zp_img
(QC1 database)
dataset:backgd_mean
mean:no datamJy/1hr
fixed thresholds:0...25000mJy/1hr
N_data plotted:0
[click on plot for closeup]
This plot

Historical mean background values 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 background level is determined from the half-cycle frames where no offset correction (32768 value added for each pixel) was applied.  


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