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VISIR trending system: HISTORY report
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Last update: 2015-02-12T14:18:00 (UT)
same group: sensitivity   N_band Q_band
close window history: 2005 2006 2007 2008 2009 2010   2011   2012   HEALTH
  ... ... ... ... ...
*Date on this monitor changes at 21:00 UT
Print: 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 oQC1DB none   mJy/1hr none  17 sensit this | last_yr | all Q1 sensitivity for the IF, pfov=0.127
1 QC1DB MEDIAN 28.9 mJy/1hr none  39 sensit this | last_yr | all Q1 sensitivity for the SF, pfov=0.075
2 oQC1DB none   mJy/1hr none  15 sensit this | last_yr | all Q2 sensitivity for the IF, pfov=0.127
2 QC1DB MEDIAN 40 mJy/1hr none  31 sensit this | last_yr | all Q2 sensitivity for the SF, pfov=0.075
3 oQC1DB none   mJy/1hr none  12 sensit this | last_yr | all Q3 sensitivity for the IF, pfov=0.127
3 QC1DB MEDIAN 77.1 mJy/1hr none  4 sensit this | last_yr | all Q3 sensitivity for the SF, pfov=0.075
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
data source:visir_zp_img
(QC1 database)
dataset:
(numbers below apply to this dataset)
sensito
average:none
thresholds:none
N_data plotted:17
[click on plot for closeup]
Plot 2
data source:visir_zp_img
(QC1 database)
dataset:
(numbers below apply to this dataset)
sensito
average:none
thresholds:none
N_data plotted:15
[click on plot for closeup]
Plot 3
data source:visir_zp_img
(QC1 database)
dataset:
(numbers below apply to this dataset)
sensito
average:none
thresholds:none
N_data plotted:12
[click on plot for closeup]
This plot

Historical measurements of the sensitivity parameter for Q band filters: Q1 (17.7 um), Q2 (18.7 um), and Q3 (19.5 um). For each filter the data are sorted by the pixel-field-of-view: 0.075 arcsec/pixel (SF) and 0.127 arcsec/pixel (IF).

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 of 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