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MIDI trending system: HISTORY plot
Last update: 2011-08-10T06:10:50 (UT)
same group: OPEN HS SP longtrend_OP longtrend_HS longtrend_SP
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
Plot
?
Symb
?
Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB none   Pixels none   235 open_beamA_X this | last_yr | all  
2 QC1DB none   Pixels none   235 open_beamB_X this | last_yr | all  
3 QC1DB none   Pixels none   235 open_beamA_Y this | last_yr | all  
4 QC1DB none   Pixels none   235 open_beamB_Y this | last_yr | all  
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:midi_refpix
(QC1 database)
dataset:open_beamA_X
average:none
thresholds:none
N_data plotted:235
[click on plot for closeup]
Plot 2
data source:midi_refpix
(QC1 database)
dataset:open_beamB_X
average:none
thresholds:none
N_data plotted:235
[click on plot for closeup]
Plot 3
data source:midi_refpix
(QC1 database)
dataset:open_beamA_Y
average:none
thresholds:none
N_data plotted:235
[click on plot for closeup]
Plot 4
data source:midi_refpix
(QC1 database)
dataset:open_beamB_Y
average:none
thresholds:none
N_data plotted:235
[click on plot for closeup]
This plot

The reference pixels of MIDI are the two pixels of the detector onto which the centroids of the target images must fall in order to ensure a proper beam overlap. They are measured using the center of a pinhole, in the 3 set-ups OPEN, HIGH_SENS and SCI_PHOT, for telescopes beams A and B feeding MIDI, for the interferometric channnels 1 and 2 of MIDI, and for the photometric channels PA and PB of MIDI (in SCI_PHOT only).  


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