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MIDI trending system: HISTORY plot
Last update: 2011-10-17T11:01:51 (UT)
same group: TRANS COUNTS
close window history: 2006 2007   2008   2009   2010 2011 2012 2013 2014 2015   HEALTH
  ... ... ... ... ... ... ...
*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
- general comment: Apparent variations in transmission are usually due to high pressure (see pressure plot)
Plot
?
Symb
?
Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 0.77765 NONE VAL0.74,1.00 39 disp4_transmission this | last_yr | all prism [ARIII]
2 QC1DB MEDIAN 0.79296 NONE VAL0.76,1.00 39 disp5_transmission this | last_yr | all prism [NeII]
3 QC1DB MEDIAN 0.82832 NONE VAL0.78,1.00 39 disp6_transmission this | last_yr | all prism [SIV]
4 QC1DB MEDIAN 0.52007 NONE VAL0.4,1.00 39 disp4_transmission this | last_yr | all grism [ARIII]
5 QC1DB MEDIAN 0.5132 NONE VAL0.4,1.00 39 disp5_transmission this | last_yr | all grism [NeII]
6 QC1DB MEDIAN 0.58961 NONE VAL0.4,1.00 39 disp6_transmission this | last_yr | all grism [SIV]
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:midi_dettrn
(QC1 database)
dataset:disp4_transmission
median:0.77765NONE
fixed thresholds:0.74...1.0NONE
N_data plotted:39
[click on plot for closeup]
Plot 2
data source:midi_dettrn
(QC1 database)
dataset:disp5_transmission
median:0.79296NONE
fixed thresholds:0.76...1.0NONE
N_data plotted:39
[click on plot for closeup]
Plot 3
data source:midi_dettrn
(QC1 database)
dataset:disp6_transmission
median:0.82832NONE
fixed thresholds:0.78...1.0NONE
N_data plotted:39
[click on plot for closeup]
Plot 4
data source:midi_dettrn
(QC1 database)
dataset:disp4_transmission
median:0.52007NONE
fixed thresholds:0.4...1.0NONE
N_data plotted:39
[click on plot for closeup]
Plot 5
data source:midi_dettrn
(QC1 database)
dataset:disp5_transmission
median:0.5132NONE
fixed thresholds:0.4...1.0NONE
N_data plotted:39
[click on plot for closeup]
Plot 6
data source:midi_dettrn
(QC1 database)
dataset:disp6_transmission
median:0.58961NONE
fixed thresholds:0.4...1.0NONE
N_data plotted:39
[click on plot for closeup]
This plot

MIDI has 2 dispersive elements a prism (R=30) and a grism (R=230). The transmission of each element is measured through narrow-band filters at three wavelengths (9.00, 10.46 and 12.80 microns). Measurement through the same filters but without the dispersion are also performed to normalize the transmission.  


General information

Click on any of the plots to see a close-up version. The latest date is indicated on top of the plot, data points belonging to that date are specially marked.

If configured,

  • 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