ISAAC trending system: HISTORY plot
Last update: 2008-07-13T21:56:04 (UT)
same group: SW_IMG SW_SPEC   LW_DCHB LW_DCLB LW_UCHB det_temp
close window history: 2001 2002 2003 2004 2005 2006 2007   2008   2009   2010 2011 2012 2013   HEALTH
  ... ... ... ... ... ... ... ... ... ...
*Date on this monitor changes at 21:00 UT
Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
  • 3 dark raw frames make a MASTER_DARK
  • more on darks
  • 2007-06-26 to 2007-07-01: intervention;
    DARK current from 205 to 220 ADU (for DIT=10sec)
  • 2007-08-11 power cut and UPS off, T=150K;
  • 2007-09-30 to 2007-10-06 intervention;
  • 2007-10-24 to 2007-11-04 intervention;
Plot
[info]		 Symbol
[info]		 Source* Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
2 •QC1DB MEDIAN 2.23934 ADU VAL1,5 84 this | last_yr | all RON in upper left (UL) quadrant (cleaned RMS)
3 •QC1DB MEDIAN 2.24512 ADU VAL1,5 84 this | last_yr | all like Fig.2, upper right (UR) quadrant
1 •QC1DB MEDIAN 210.25238 ADU none   84 this | last_yr | all dark
5 •QC1DB MEDIAN 1.92172 ADU VAL1,5 84 this | last_yr | all like Fig.2, lower left (LL) quadrant
6 •QC1DB MEDIAN 2.04283 ADU VAL1,5 84 this | last_yr | all like Fig.2, lower right (LR) quadrant
4 •QC1DB MEDIAN 0.36865 ADU none   84 this | last_yr | all dark RMS
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

This is the trending plot for the ISAAC QC parameters derived from DARK frames. The setting is
OCS.SELECT-ARM=SW (Hawaii array)
DET_MODE_NAME=NonDest (used for spectroscopy) and
DET_DIT=10sec.

These plots describe:
Fig. 1. dark current, median of the MASTER_DARK frame.
Fig. 2. RON in upper left (UL) detector quadrant. It is a clean RMS derived from the difference of the first two raw dark frames,
Fig. 3. RON As Fig.2 for upper right quadrant (UR),
Fig. 4. rms of raw dark medians,
Fig. 5. RON As Fig.2 for lower left (LL) quadrant,
Fig. 6. RON As Fig.2 for lower right (LR) quadrant.
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