Health Check
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HealthCheck Monitor
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ISAAC:
detectors:RON,Dark
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ISAAC trending system: HEALTH CHECK plot
Last update: 2008-07-05T13:35:57 (UT)
now: 2008-07-07T07:33:05 (UT)
INFO USERS-GUIDE MORE
same group: SW-IMG SW-SPEC   LW_DCHB LW_DCLB LW_UCHB
history ... | plot tutorial ...   daily/often; important to check     [info]
last OPSLOG data:
2008-07-05
Plot: 1 2 3 4 5 6   latest_files
N_data: number of recent OPSLOG entries plotted here
N_data: 24 24 24 24 24 24 availability
Print: Information and research: News:
- 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 310 to 360 ADU for DIT=10sec
  • 2007-07-19 to 2007-07-30: intervention;
  • 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;
  • 2008-04-21 to 2008-04--28 intervention;
  • 2008-04-28 to 2008-05--04 recovery;
  • 2008-02-03: (UT=10..23) OddEvenColumnEffect increased from 0.004 to 0.02.
    Click on detectors:FPN in navigation bar to monitor effect in daily dark frames.
  • 2008-02-25T00 Hawaii: DET.RSPEED changed from 6 to 10
  • 2008-02-29T00 Hawaii: detector warmed up by intension and cooled again.
  • 2008-04-21: intervention for M7 and odd-even column effect.
  • 2008-05-04T12 Hawaii: DET.RSPEED changed from 10 to 6
  • 2008-05-08: recovery finished.
Plot
[info]
Symbol
[info]
Source* OPS?** Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
2 QC1DB yes (24) MEDIAN 2.64485 ADU VAL1,5 79 this | last_yr | all RON in upper left (UL) quadrant. (Cleaned RMS)
3 QC1DB yes (24) MEDIAN 2.63343 ADU VAL1,5 79 this | last_yr | all like Fig.2, upper right (UR) quadrant
5 QC1DB yes (24) MEDIAN 2.25029 ADU VAL1,5 79 this | last_yr | all like Fig.2, lower left (LL) quadrant
6 QC1DB yes (24) MEDIAN 2.39136 ADU VAL1,5 79 this | last_yr | all like Fig.2, lower right (LR) quadrant
1 QC1DB yes (24) MEDIAN 304.03333 ADU none   79 this | last_yr | all dark
4 QC1DB yes (24) MEDIAN 0.47258 ADU none   79 this | last_yr | all dark RMS
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate if OPSLOG data are included
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=DoubleCorr (used for imaging) 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.

If applicable, the latest values from Paranal ops logs are plotted as blue dots. More information about those values, including a download option, is available in the OPSLOG section on top of the page.

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