Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
| QC1DB |
MEDIAN |
0.455 |
Relative_Flux |
VAL | 0.22,1.0 |
346 |
qc_rf1 |
this |
last_yr |
all
|
relative flux in slitlet (for ALL filters and pixel scales) |
2 |
| QC1DB |
MEDIAN |
0.799 |
Relative_Flux |
VAL | 0.24,1.0 |
346 |
qc_rf32 |
this |
last_yr |
all
|
relative flux in slitlet (for ALL filters and pixel scales) |
|
*Data sources: QC1DB: QC1 database; LOCAL: local data source
|
Plot 1 | data source: | sinfoni_flat (QC1 database) |
dataset: | qc_rf1 | |
median: | 0.455 | Relative_Flux |
fixed thresholds: | 0.22...1.0 | Relative_Flux |
N_data plotted: | 346 |
[click on plot for closeup] |
Plot 2 | data source: | sinfoni_flat (QC1 database) |
dataset: | qc_rf32 | |
median: | 0.799 | Relative_Flux |
fixed thresholds: | 0.24...1.0 | Relative_Flux |
N_data plotted: | 346 |
[click on plot for closeup] |
This plot
These are the trending plots for the vignetting check computed from the LAMP FLATs.
Slitlets #1 and #32 correspond to the upper-most and the lower-most slitlets in the field-of-view.
As such, these slitlets can be subject to vignetting to the extent that their overall count rates
can be a few 10% lower than for other slitlets.
Following image reconstruction, these slitlets are located on the central part of the detector.
A possible vignetting is monitored by comparing the relative count rates (i.e. the mean counts in
the slitlet #1 or #32 divided by the mean counts in all other slitlets).
This QC1 parameter is most relevant following an instrument intervention.
General information
Click on any of the plots to see a close-up version.
The latest date is indicated on top of the plot.
If configured,
- data points belonging to the latest date are specially marked
- 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
|