VIMOS trending system: HEALTH CHECK plot
Last update: 2008-11-22T06:09:21 (UT)
now: 2008-11-22T22:02:31 (UT)
scores under test! INFO USERS-GUIDE MORE
same group: X0_Y0 MATRIX
last OPSLOG data:
2008-11-21		 Plot: 1 2 3 4 5 6 7 8   latest_files
N_data: number of recent OPSLOG entries plotted here
N_data: 2 3 2 3 2 2 2 2 availability
close window history: 2006 2007   2008   HEALTH
  ...
Print: Information and research: News:
- png file - advanced studies: QC1 browser | QC1 plotter
 Since 2007-02-01, the daily mask to CCD check should be operated at a rotator angle of 26 deg. The X0 and Y0 values should be stable within the indicated range.
Plot
?		 Symb
?		 Source
*		 OPS?
**		 Average ? Thresholds ? N_
data		 QC1
parameter		 Data
downloads		 Remarks
method value unit method value
1 •QC1DB yes (2) none   pix VAL913,919 68 x0 this | last_yr | all coefficient x0, Q2
2 •QC1DB yes (3) none   pix VAL1113,1119 67 x0 this | last_yr | all coefficient x0, Q1
5 •QC1DB yes (2) none   pix VAL1030,1036 67 x0 this | last_yr | all coefficient x0, Q3
6 •QC1DB yes (2) none   pix VAL1085,1091 67 x0 this | last_yr | all coefficient x0, Q4
3 •QC1DB yes (2) none   pix VAL1062.0,1065.0 68 y0 this | last_yr | all coefficient y0, Q2
4 •QC1DB yes (3) none   pix VAL1070.5,1073.5 67 y0 this | last_yr | all coefficient y0, Q1
7 •QC1DB yes (2) none   pix VAL1387.5,1390.5 67 y0 this | last_yr | all coefficient y0, Q3
8 •QC1DB yes (2) none   pix VAL1376.5,1379.5 67 y0 this | last_yr | all coefficient y0, Q4
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
This plot

Trending plots for monitoring the coefficients of the mask to CCD transformation.

The transformation is as follows:
X = a(xx)*x + a(xy)*y + x(0)
Y = a(yx)*x + a(yy)*y + y(0)
with (x,y) being mask coordinates in mm and (X,Y) CCD coordinates in pixel. X direction is along the slit orientation, y direction is perpendicular to the slits (i.e. in dispersion direction).

These trending plots show the time evolution of x(0) and y(0). x(0) should vary by less than 3 pixels, y(0) by less than 1.5 pixels. These thresholds are indicated in the plots.  

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