MIDI Trending and Quality Control system
Last update: 2006-11-21T09:41:53 (UT) | last data from: 2006-10-20
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Plot Symbol
[info]		 Source* Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
7 •LOCAL none  NONE VAL 0,6000 58 n/a A0_OPEN
8 •LOCAL none  NONE VAL 0,6000 67 n/a A0_GRISM
9 •LOCAL none  NONE VAL 0,6000 65 n/a A0_PRISM
4 •LOCAL none  NONE VAL 0,3000 58 n/a A1_OPEN
5 •LOCAL none  NONE VAL 0,4000 67 n/a A1_GRISM
6 •LOCAL none  NONE VAL 0,7000 65 n/a A1_PRISM
1 •LOCAL none  NONE VAL -100,100 58 n/a A2_OPEN
2 •LOCAL none  NONE VAL -100,100 67 n/a A2_GRISM
3 •LOCAL none  NONE VAL -100,100 65 n/a A2_PRISM
*Data sources: OPSLOG: Paranal ops logs; QC1DB: QC1 database; LOCAL: local text file
This plot

The linearity of the MIDI detector is an indicator if the quality of its response curve. The pipeline calculate the coefficients of the polynomial fit of the average pixel value (over a windowed area) of the detector for 3 different configurations (image, prism and grism). The polynomial fit is: I(t) = A_0 + A_1 * t + A_2 * t^2, where I is the detector level in ADU and t the time in millisecond.  

General information

Click on any of the plots to see a close-up version.

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