ISAAC trending system: HISTORY plot
Last update: 2008-07-24T15:14:13 (UT)
same group: GratingCheck NightAcq DayCalSlit
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*Date on this monitor changes at 21:00 UT
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  • 2007-04-16: Lower plots combine QC values of different OBs.
  • 2007-04-17: DURATION = time between both through slit images in days; 1h = 0.08 days
Plot
[info]		 Symbol
[info]		 Source* Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
1 •QC1DB MEDIAN 516.20007 PIXEL none   39 this | last_yr | all X-position before calibrations
1 oQC1DB none   PIXEL none   37 this | last_yr | all X-position after calibrations
2 •QC1DB MEDIAN 498.50000 PIXEL none   39 this | last_yr | all Y-position before calibrations
2 oQC1DB none   PIXEL none   37 this | last_yr | all Y-position after calibrations
3 •QC1DB MEDIAN -89.52174 DEGREE none   39 this | last_yr | all Tilt angle before calibrations
3 oQC1DB none   DEGREE none   37 this | last_yr | all Tilt angle after calibrations
4 •QC1DB MEDIAN 3825113.00000 ADU none   39 this | last_yr | all Arc line flux before calibrations
4 oQC1DB none   ADU none   37 this | last_yr | all Arc line flux after calibrations
5 •LOCAL MEDIAN -0.11334 PIXEL none   39 n/a X-position after minus before
6 •LOCAL MEDIAN 0.00000 PIXEL none   39 n/a Y-position after minus before
7 •LOCAL MEDIAN -0.00139 DEGREE none   39 n/a Tilt angle after minus before
8 •LOCAL MEDIAN 0.02276 ADU none   39 n/a time between both slit acquisitions in days
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

This is the trending plot of the through slit images taken as part of the day time calibration sequence for spectroscopy.

This plot describes:
1. The x-position of the first slit image taken before the spectroscopic arc and flat frames (black) and the second slit image taken after the spectroscopic arc and flat frames (red).
2. The y-position of the slit images taken before (black) and after (red) the day time calibrations.
3. The tilt angle of the slit images taken before (black) and after (red) the day time calibrations.
4. The flux of the slit images taken before (black) and after (red) the day time calibrations.
5. slit/camera movement during day-time calibrations: AFTER minus BEFORE measurement of Fig.1.
6. slit/camera movement during day-time calibrations: AFTER minus BEFORE measurement of Fig.2.
7. slit/camera movement during day-time calibrations: AFTER minus BEFORE measurement of Fig.3.
8. The time between both slit images in the calobuild batch in days.
Note 1 hour = 0.08 days.

The purpose of this trending is to check if the camera and grating have been stable during the batch acquisition of day time calibrations. Find more information about ISAAC slit 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