Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
♦ | QC1DB |
none |
|
ADU |
none | |
6 |
qc_twflat_medmin |
this |
last_yr |
all
|
TWILRAWMINMAX, average over all 16 detectors |
1 |
| QC1DB |
none |
|
ADU |
VAL | 4000,12000 |
6 |
qc_twflat_medavg |
this |
last_yr |
all
|
TWILRAWMINMAX, average over all 16 detectors |
1 |
■ | QC1DB |
none |
|
ADU |
none | |
6 |
qc_twflat_medmax |
this |
last_yr |
all
|
TWILRAWMINMAX, average over all 16 detectors |
2 |
◊ | QC1DB |
none |
|
ADU |
none | |
95 |
qc_twflat_medmin |
this |
last_yr |
all
|
TWILRAWMINMAX, values of all detetcors |
2 |
o | QC1DB |
none |
|
ADU |
VAL | 4000,12000 |
96 |
qc_twflat_medavg |
this |
last_yr |
all
|
TWILRAWMINMAX, values of all detetcors |
2 |
□ | QC1DB |
none |
|
ADU |
none | |
96 |
qc_twflat_medmax |
this |
last_yr |
all
|
TWILRAWMINMAX, values of all detetcors |
3 |
♦ | QC1DB |
none |
|
ADU |
none | |
6 |
qc_twflat_medmin |
this |
last_yr |
all
|
TWILRAWMINMAX, stdev over all detectors |
3 |
| QC1DB |
none |
|
ADU |
none | |
6 |
qc_twflat_medavg |
this |
last_yr |
all
|
TWILRAWMINMAX, stdev over all detectors |
3 |
■ | QC1DB |
none |
|
ADU |
none | |
6 |
qc_twflat_medmax |
this |
last_yr |
all
|
TWILRAWMINMAX, stdev over all detectors |
4 |
■ | LOCAL |
none |
|
number |
none | |
0 |
pro_datancom |
n/a |
PRO.DATANCOM : number of raw frames the product is composed of |
4 |
■ | LOCAL |
none |
|
number |
none | |
0 |
pro_datancom |
n/a |
PRO.DATANCOM : number of raw frames the product is composed of |
4 |
. | LOCAL |
none |
|
number |
none | |
0 |
pro_datancom |
n/a |
PRO.DATANCOM : number of raw frames the product is composed of |
4 |
. | LOCAL |
none |
|
number |
none | |
0 |
pro_datancom |
n/a |
PRO.DATANCOM : number of raw frames the product is composed of |
|
*Data sources: QC1DB: QC1 database; LOCAL: local data source
|
Plot 1 | data source: | vircam_twilight (QC1 database) |
dataset: (numbers below apply to this dataset) | qc_twflat_medmin | ♦ |
average: | none |
thresholds: | none |
N_data plotted: | 6 |
[click on plot for closeup] |
Plot 2 | data source: | vircam_twilight (QC1 database) |
dataset: (numbers below apply to this dataset) | qc_twflat_medmin | ◊ |
average: | none |
thresholds: | none |
N_data plotted: | 95 |
[click on plot for closeup] |
Plot 3 | data source: | vircam_twilight (QC1 database) |
dataset: (numbers below apply to this dataset) | qc_twflat_medmin | ♦ |
average: | none |
thresholds: | none |
N_data plotted: | 6 |
[click on plot for closeup] |
Plot 4 | data source: | local data source
|
dataset: (numbers below apply to this dataset) | pro_datancom | ■ |
average: | none |
thresholds: | none |
N_data plotted: | 0 |
[click on plot for closeup] |
This plot
Trending plot for Minimum, Average, and Maximum of raw frame medians.
QC parameters is derived from the twilight flat raw frame input stack.
Name:QC_RAWMED_AVG
Fits header: QC.FLATMIN, QC.FLATAVG, QC.FLATMAX
QC1 DB: qc_twflat_medmin, qc_twflat_medavg, qc_twflat_medmax
Description:
Retrieve from each raw frame the median of the flux level. Take the average, the maximum mand the minimum of the sample of all raw frame medians.
Setup:
INS.FILT1.NAME = H
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. Extra: PRO.DATANCOM, the number of raw frames which
contributed to the master twilight flat.
The twilight flat recipe accepts only raw frames with counts between 4000 and 12000 ADU.
Brighter and fainter raw flat frames are rejected when generating a master
twilight flat.
Per detector: Master flats composed of less than 5 accepted raw frames are scored red.
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.
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
|