Plot
? |
Symb
? |
Source
* |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
MEDIAN |
0.532 |
Relative_Flux |
VAL | 0.22,1.0 |
269 |
qc_rf1 |
this |
last_yr |
all
|
relative flux in slitlet (for ALL filters and pixel scales) |
| 2 |
• | QC1DB |
MEDIAN |
0.847 |
Relative_Flux |
VAL | 0.24,1.0 |
269 |
qc_rf32 |
this |
last_yr |
all
|
relative flux in slitlet (for ALL filters and pixel scales) |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file
|
| Plot 1 | | data source: | sinfoni_flat
(QC1 database) |
| dataset: | qc_rf1 | • |
| median: | 0.532 | Relative_Flux |
| fixed thresholds: | 0.22...1.0 | Relative_Flux |
| N_data plotted: | 269 |
| [click on plot for closeup] |
| Plot 2 | | data source: | sinfoni_flat
(QC1 database) |
| dataset: | qc_rf32 | • |
| median: | 0.847 | Relative_Flux |
| fixed thresholds: | 0.24...1.0 | Relative_Flux |
| N_data plotted: | 269 |
| [click on plot for closeup] |
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, 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
|
