Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
| QC1DB |
MEDIAN |
8.86e+03 |
ADU |
VAL | 50,14000 |
8 |
qc_twflat_medrng |
this |
last_yr |
all
|
TWILRAWRANGE, average over all 16 detectors |
2 |
| QC1DB |
MEDIAN |
8.93e+03 |
ADU |
VAL | 50,14000 |
128 |
qc_twflat_medrng |
this |
last_yr |
all
|
TWILRAWRANGE, values of all detetcors |
3 |
| QC1DB |
MEDIAN |
1.49e+03 |
ADU |
VAL | 10,2000 |
8 |
qc_twflat_medrng |
this |
last_yr |
all
|
TWILRAWRANGE, stdev over all detectors |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file
|
Plot 1 | data source: | vircam_twilight (QC1 database) |
dataset: | qc_twflat_medrng | |
median: | 8.86e+03 | ADU |
fixed thresholds: | 50...14000 | ADU |
N_data plotted: | 8 |
[click on plot for closeup] |
Plot 2 | data source: | vircam_twilight (QC1 database) |
dataset: | qc_twflat_medrng | |
median: | 8.93e+03 | ADU |
fixed thresholds: | 50...14000 | ADU |
N_data plotted: | 128 |
[click on plot for closeup] |
Plot 3 | data source: | vircam_twilight (QC1 database) |
dataset: | qc_twflat_medrng | |
median: | 1.49e+03 | ADU |
fixed thresholds: | 10...2000 | ADU |
N_data plotted: | 8 |
[click on plot for closeup] |
This plot
Trending plot for Range of raw frame medians.
QC parameters is derived from the raw frame input stack.
Name:QC_RAWMED_RANGE
Fits header: QC.FLATRNG,
QC1 DB: qc_twflat_medrng
Description:
Retrieve from each raw frame the median of the flux level. Take the range of all raw frame medians.
Setup:
INS.FILT1.NAME = NB118
These plots describe:
Fig. 1. Average view: The QC parameter averaged over all detectors.
This view is sensitive to common changes.
Fig. 2. Resolved View: The QC parameter resolved for all detectors.
Fig. 3. Scatter View: The standard deviation of the QC parameter, obtained from the sample of all detectors.
This view is sensitive changes of individual detectors.
Fig. 4. Scoring View: Scoring values of all 16 QC parameters.
Green = within the acceptance thresholds.
Red = beyond the acceptance thresholds.
Find more information on the VIRCAM TWILIGHT FLAT tutorial page.
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
|