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ISAAC trending system: HISTORY plot
Last update: 2009-04-12T21:18:12 (UT)
same group: SW_IMG SW_SPEC   LW_DCHB LW_DCLB LW_UCHB det_temp
close window history: 2002 2003 2004 2005 2006 2007 2008   2009   2010   2011 2012 2013   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
  • upper row UnCorrHighBias DIT=0.11 sec
Plot
?		 Symb
?		 Source
*		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB MEAN 10.69394   VAL8,14 96 ron12 this | last_yr | all RON12 for DIT=0.11sec and UncorrHighBias
2 •QC1DB MEAN 9.02094   3SIG± 1.24365 96 ron23 this | last_yr | all RON23 for DIT=0.11sec and UncorrHighBias
3 •QC1DB MEAN -3939.86133 ADU 3SIG± 222.04601 96 qc_darkmed this | last_yr | all dark current for DIT=0.11sec and UncorrHighBias
4 •QC1DB MEAN 3.0175   VAL0,5 96 qc_dark_stdev this | last_yr | all raw framedark RMS for DIT=0.11sec and UncorrHighBias
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

This is the trending plot for the ISAAC Aladdin QC parameters derived from DARK frames for read mode UncorrHighBias
and the only used DIT of 0.11sec

These plots describe:
1. RON12 for DIT=0.11sec,
2. RON23 for DIT=0.11sec,
3. Dark current for DIT=0.11sec,
4. RMS for DIT=0.11sec

RON is derived twice, once from the the first pair of raw frames (RON12 = black points), and once from the second pair of raw frames (RON23 = green points). The Uncorr detector read mode (= ResetRead) shows a significant difference between RON12 and RON23.
The dark is the median of the MASTER_DARK product.
The RMS is the standard deviation derived from the three raw frame median values and is a measure of the short-term dark stability fir the given DIT.
Find more information about ISAAC DARK frames here.

Other QC parameters related to detector properties (like structural noise, linearity) are trended.  

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