Health Check monitor

Plot 1 scores: 14|
data source:	vimos_mask2ccd (QC1 database)
dataset:	xy	•
median:	0.00126024	pix/mm
fixed thresholds:	-0.005...0.005	pix/mm
N_data plotted:	96
[click on plot for closeup]

Plot 2 scores: 13|
data source:	vimos_mask2ccd (QC1 database)
dataset:	xy	•
median:	0.000489801	pix/mm
fixed thresholds:	-0.005...0.005	pix/mm
N_data plotted:	95
[click on plot for closeup]

Plot 3 scores: 14|
data source:	vimos_mask2ccd (QC1 database)
dataset:	yx	•
median:	-0.00119785	pix/mm
fixed thresholds:	-0.005...0.005	pix/mm
N_data plotted:	96
[click on plot for closeup]

Plot 4 scores: 13|
data source:	vimos_mask2ccd (QC1 database)
dataset:	yx	•
median:	0.000191864	pix/mm
fixed thresholds:	-0.005...0.005	pix/mm
N_data plotted:	95
[click on plot for closeup]

Plot 5 scores: 13|
data source:	vimos_mask2ccd (QC1 database)
dataset:	xy	•
median:	-0.00175367	pix/mm
fixed thresholds:	-0.008...0.002	pix/mm
N_data plotted:	94
[click on plot for closeup]

Plot 6 scores: 13|
data source:	vimos_mask2ccd (QC1 database)
dataset:	xy	•
median:	0.00498	pix/mm
fixed thresholds:	0...0.01	pix/mm
N_data plotted:	92
[click on plot for closeup]

Plot 7 scores: 13|
data source:	vimos_mask2ccd (QC1 database)
dataset:	yx	•
median:	0.00127456	pix/mm
fixed thresholds:	-0.002...0.008	pix/mm
N_data plotted:	94
[click on plot for closeup]

Plot 8 scores: 13|
data source:	vimos_mask2ccd (QC1 database)
dataset:	yx	•
median:	-0.00536088	pix/mm
fixed thresholds:	-0.01...0	pix/mm
N_data plotted:	92
[click on plot for closeup]

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 the matrix coefficients a(xx), a(xy), a(yx), and a(yy). The diagonal coefficients a(xx) and a(yy) give the scale factor between mask and CCD (near 8.4 pixel/mm). Variations are mainly cause by temperature changes, the empirical tolerance is around +/- 0.006 pixel/mm. The coefficients a(xy) and a(yx) give the rotation and should be near zero. The tolerance is +/- 0.005 pixel/mm around the empirical average. The procedure in case of violation of the thresholds is described on the SciOps Wiki pages.

Template ID: img_tec_MaskToCcd. Pipeline recipe: vmmasktoccd.