Plot
[info] |
Symbol
[info] |
Source* |
OPS?** |
Average [info] |
Thresholds [info] |
N_data |
Data downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
yes (4) |
none |
|
pix |
VAL | 913,919 |
75 |
this |
last_yr |
all
|
coefficient x0, Q2 |
| 2 |
• | QC1DB |
yes (4) |
none |
|
pix |
VAL | 1113,1119 |
74 |
this |
last_yr |
all
|
coefficient x0, Q1 |
| 5 |
• | QC1DB |
yes (4) |
none |
|
pix |
VAL | 1030,1036 |
74 |
this |
last_yr |
all
|
coefficient x0, Q3 |
| 6 |
• | QC1DB |
yes (3) |
none |
|
pix |
VAL | 1085,1091 |
74 |
this |
last_yr |
all
|
coefficient x0, Q4 |
| 3 |
• | QC1DB |
yes (4) |
none |
|
pix |
VAL | 1062.0,1065.0 |
75 |
this |
last_yr |
all
|
coefficient y0, Q2 |
| 4 |
• | QC1DB |
yes (4) |
none |
|
pix |
VAL | 1070.5,1073.5 |
74 |
this |
last_yr |
all
|
coefficient y0, Q1 |
| 7 |
• | QC1DB |
yes (4) |
none |
|
pix |
VAL | 1387.5,1390.5 |
74 |
this |
last_yr |
all
|
coefficient y0, Q3 |
| 8 |
• | QC1DB |
yes (3) |
none |
|
pix |
VAL | 1376.5,1379.5 |
74 |
this |
last_yr |
all
|
coefficient y0, Q4 |
|
|
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate if 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
|
