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MIDI trending system: HISTORY plot
Last update: 2011-08-10T03:59:06 (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
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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
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEDIAN 189.91611 Pixels VAL189.6,190.4 51 hs_beamA1_X this | last_yr | all BEAM A-ch 1
2 QC1DB MEDIAN 189.26741 Pixels VAL189,190 51 hs_beamA2_X this | last_yr | all BEAM A-ch 2
3 QC1DB MEDIAN 79.45509 Pixels VAL79.3,80.3 51 hs_beamA1_Y this | last_yr | all BEAM A-ch 1
4 QC1DB MEDIAN 164.52991 Pixels VAL164.3,165.3 51 hs_beamA2_Y this | last_yr | all BEAM A-ch 2
5 QC1DB MEDIAN 190.11342 Pixels VAL189.8,190.6 51 hs_beamB1_X this | last_yr | all BEAM B-ch 1
6 QC1DB MEDIAN 189.47221 Pixels VAL189,190 51 hs_beamB2_X this | last_yr | all BEAM B-ch 2
7 QC1DB MEDIAN 80.2093 Pixels VAL80,81 51 hs_beamB1_Y this | last_yr | all BEAM B-ch 1
8 QC1DB MEDIAN 165.29095 Pixels VAL165,166 51 hs_beamB2_Y this | last_yr | all BEAM B-ch 2
*Data sources: QC1DB: QC1 database; LOCAL: local text file
Plot 1
data source:midi_refpix
(QC1 database)
dataset:hs_beamA1_X
median:189.91611Pixels
fixed thresholds:189.60001...190.39999Pixels
N_data plotted:51
[click on plot for closeup]
Plot 2
data source:midi_refpix
(QC1 database)
dataset:hs_beamA2_X
median:189.26741Pixels
fixed thresholds:189.0...190.0Pixels
N_data plotted:51
[click on plot for closeup]
Plot 3
data source:midi_refpix
(QC1 database)
dataset:hs_beamA1_Y
median:79.45509Pixels
fixed thresholds:79.3...80.3Pixels
N_data plotted:51
[click on plot for closeup]
Plot 4
data source:midi_refpix
(QC1 database)
dataset:hs_beamA2_Y
median:164.52991Pixels
fixed thresholds:164.3...165.3Pixels
N_data plotted:51
[click on plot for closeup]
Plot 5
data source:midi_refpix
(QC1 database)
dataset:hs_beamB1_X
median:190.11342Pixels
fixed thresholds:189.8...190.60001Pixels
N_data plotted:51
[click on plot for closeup]
Plot 6
data source:midi_refpix
(QC1 database)
dataset:hs_beamB2_X
median:189.47221Pixels
fixed thresholds:189.0...190.0Pixels
N_data plotted:51
[click on plot for closeup]
Plot 7
data source:midi_refpix
(QC1 database)
dataset:hs_beamB1_Y
median:80.2093Pixels
fixed thresholds:80.0...81.0Pixels
N_data plotted:51
[click on plot for closeup]
Plot 8
data source:midi_refpix
(QC1 database)
dataset:hs_beamB2_Y
median:165.29095Pixels
fixed thresholds:165.0...166.0Pixels
N_data plotted:51
[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