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ISAAC trending system: HEALTH CHECK plot
Last update: 2009-01-28T22:06:48 (UT)
| now: 2012-02-11T06:05:29 (UT)
scores under test! INFO USERS-GUIDE MORE
same group: ABS_MED ABS_STD ABS_RATIO REF_RATIO_MED REF_RATIO_STD REF_DIFF_MED REF_DIFF_STD
no OPSLOG data
space		 Plot:
N_data:
close window history: 2006 2007 2008   2009   HEALTH
  ... ...
Print: Information and research: News:
- png file - advanced studies: QC1 browser | QC1 plotter
  • 2008-01-24 historical data 2007, 2006 processed
  • 2008-01-25 migrated to trendPlotter
  • 2008-02-15 The reference frame is from 2008-02-01
  • 2008-03-12 The reference is exchanged (now from 2007-12-26) to monitor better the impact of the odd-evern column effect.
Plot
?		 Symb
?		 Source
*		 OPS?
**		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB no none   ADU none   90 qc_ul_D_stdev this | last_yr | all raw checkflat stdev in UL 100x100 pixel window
3 •QC1DB no none   ADU none   90 qc_ur_D_stdev this | last_yr | all raw checkflat stdev in LL 100x100 pixel window
2 •QC1DB no none   ADU none   90 qc_cc_D_stdev this | last_yr | all raw checkflat stdev in CC 100x100 pixel window
4 •QC1DB no none   ADU none   90 qc_ll_D_stdev this | last_yr | all raw checkflat stdev in UR 100x100 pixel window
6 •QC1DB no none   ADU none   90 qc_lr_D_stdev this | last_yr | all raw checkflat stdev in LR 100x100 pixel window
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

This is the trending plot of the daily check flat taken as part of the daily health check procedure.

This plot describes the standard deviation of product checkflat frames. The product is simply : raw flat minus the reference flat :

1. The stdev in UL window from 206,718 to 306,818, size=100x100, centered in UL quadrant at 256,768
2. The stdev in CC window from 462,462 to 562,562, size=100x100, centered in 512,512
3. The stdev in UR window from 718,718 to 818,818, size=100x100, centered in UR quadarant at 768,768
4. The stdev in LL window from 206,206 to 306,306, size=100x100, centered in LL quadrant at 256,256
6. The stdev in LR window from 718,206 to 818,306, size=100x100, centered in LR quadrant at 768,768

Find more information about ISAAC checkflat frames here.

 

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