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SPHERE trending system: HISTORY report
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Last update: 2019-05-29T13:22:06 (UT)
same group: DIST_Y DIST_J DIST_H DIST_K
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*Date on this monitor changes at 21:00 UT
png: 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   NONE none  63 coeff_x_1_0 this | last_yr | all opt. dist. pol. coeff.
2 QC1DB none   NONE none  63 coeff_x_1_0 this | last_yr | all opt. dist. pol. coeff.
3 QC1DB none   NONE none  63 coeff_y_0_1 this | last_yr | all opt. dist. pol. coeff.
4 QC1DB none   NONE none  63 coeff_y_0_1 this | last_yr | all opt. dist. pol. coeff.
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
data source:sphere_irdis_distmap
(QC1 database)
dataset:coeff_x_1_0
average:none
thresholds:none
N_data plotted:63
[click plot for closeup]
Plot 2
data source:sphere_irdis_distmap
(QC1 database)
dataset:coeff_x_1_0
average:none
thresholds:none
N_data plotted:63
[click plot for closeup]
Plot 3
data source:sphere_irdis_distmap
(QC1 database)
dataset:coeff_y_0_1
average:none
thresholds:none
N_data plotted:63
[click plot for closeup]
Plot 4
data source:sphere_irdis_distmap
(QC1 database)
dataset:coeff_y_0_1
average:none
thresholds:none
N_data plotted:63
[click plot for closeup]
This plot

This plot show the optiocal distortion coefficient X_1_0 and Y_0_1 as a function of the IFS bench temperature. The polynomial to correct the shifts in x direction is:

Delta X = X_0_0 + X_1_0 * x + X_0_1 * y + X_1_1 * x * y + ...

and for the shifts in y-direction:

Delta Y = Y_0_0 + Y_1_0 * x + Y_0_1 * y + Y_1_1 * x * y + ...

Hence X_1_0 is the first order linear scale (the plate scale) in x-direction and Y_0_1 is the first order scale in y-direction.  


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