Plot
? |
Symb
? |
Source
* |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
MEDIAN |
0.128 |
ADU |
none | |
82 |
struct_row |
this |
last_yr |
all
|
structure of master BIAS frame in X direction, BLUE CCD, readout mode 225kHz,1x1,low |
| 2 |
• | QC1DB |
MEDIAN |
0.055 |
ADU |
none | |
119 |
struct_row |
this |
last_yr |
all
|
same, for REDL CCD |
| 3 |
• | QC1DB |
MEDIAN |
0.113 |
ADU |
none | |
119 |
struct_row |
this |
last_yr |
all
|
same, for REDU CCD |
|
| 4 |
• | QC1DB |
MEDIAN |
0.31 |
ADU |
none | |
82 |
struct_row |
this |
last_yr |
all
|
same as Fig. 1, for readout mode 50kHz,2x2,high |
| 5 |
• | QC1DB |
MEDIAN |
0.247 |
ADU |
none | |
78 |
struct_row |
this |
last_yr |
all
|
same, for REDL CCD |
| 6 |
• | QC1DB |
MEDIAN |
0.364 |
ADU |
none | |
78 |
struct_row |
this |
last_yr |
all
|
same, for REDU CCD |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local data source
|
| Plot 1 | | data source: | uves_bias
(QC1 database) |
| dataset: | struct_row | • |
| median: | 0.128 | ADU |
| thresholds: | none | |
| N_data plotted: | 82 |
| [click on plot for closeup] |
| Plot 2 | | data source: | uves_bias
(QC1 database) |
| dataset: | struct_row | • |
| median: | 0.055 | ADU |
| thresholds: | none | |
| N_data plotted: | 119 |
| [click on plot for closeup] |
| Plot 3 | | data source: | uves_bias
(QC1 database) |
| dataset: | struct_row | • |
| median: | 0.113 | ADU |
| thresholds: | none | |
| N_data plotted: | 119 |
| [click on plot for closeup] |
| Plot 4 | | data source: | uves_bias
(QC1 database) |
| dataset: | struct_row | • |
| median: | 0.31 | ADU |
| thresholds: | none | |
| N_data plotted: | 82 |
| [click on plot for closeup] |
| Plot 5 | | data source: | uves_bias
(QC1 database) |
| dataset: | struct_row | • |
| median: | 0.247 | ADU |
| thresholds: | none | |
| N_data plotted: | 78 |
| [click on plot for closeup] |
| Plot 6 | | data source: | uves_bias
(QC1 database) |
| dataset: | struct_row | • |
| median: | 0.364 | ADU |
| thresholds: | none | |
| N_data plotted: | 78 |
| [click on plot for closeup] |
This is the trending report for the QC parameters derived from UVES BIAS frames.
Since 2021 the uves_cal_mbias recipe is executed with the --pd_compute=TRUE command line option that performs a 2D Fourier transform of each of the five raw BIAS frames and calculates the (not robust) standard deviation and (robust) MAD (median absolute deviation). Both parameters are ingested into the QC1 DB, and the maximum of the five std/stdMAD values (max_ratio) is monitored here .
The purpose of the analysis is to discriminate statistical noise, and non-statistical noise.
Find more information about UVES BIAS frames here.
Other QC parameters related to detector properties (like linearity, gain) are trended here.
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
|
