Plot
? |
Symb
? |
Source
* |
OPS?
** |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
yes (1) |
MEDIAN |
3.48 |
ADU |
VAL | 3.3,3.65 |
86 |
ron23 |
this |
last_yr |
all
|
RON, chip 1, DIT=1 |
| 2 |
• | QC1DB |
yes (1) |
MEDIAN |
3.66 |
ADU |
VAL | 3.4,3.9 |
86 |
ron23 |
this |
last_yr |
all
|
RON, chip 2, DIT=1 |
| 3 |
• | QC1DB |
yes (1) |
MEDIAN |
3.66 |
ADU |
VAL | 3.3,4.0 |
86 |
ron23 |
this |
last_yr |
all
|
RON, chip 3, DIT=1 |
| 4 |
• | QC1DB |
yes (1) |
MEDIAN |
4.08 |
ADU |
VAL | 3.7,4.5 |
86 |
ron23 |
this |
last_yr |
all
|
RON, chip 4, DIT=1 |
| 5 |
• | QC1DB |
yes (1) |
MEDIAN |
1.76 |
ADU |
VAL | 1.5,2.0 |
90 |
ron23 |
this |
last_yr |
all
|
RON, chip 1, DIT=300 |
| 6 |
• | QC1DB |
yes (1) |
MEDIAN |
2.15 |
ADU |
VAL | 1.8,2.5 |
90 |
ron23 |
this |
last_yr |
all
|
RON, chip 2, DIT=300 |
| 7 |
• | QC1DB |
yes (1) |
MEDIAN |
2.25 |
ADU |
VAL | 1.9,2.6 |
90 |
ron23 |
this |
last_yr |
all
|
RON, chip 3, DIT=300 |
| 8 |
• | QC1DB |
yes (1) |
MEDIAN |
2.1 |
ADU |
VAL | 1.7,2.5 |
90 |
ron23 |
this |
last_yr |
all
|
RON, chip 4, DIT=300 |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: OPSLOG data are included
|
Plot 1
scores:  8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 3.48 | ADU |
| fixed thresholds: | 3.3...3.65 | ADU |
| N_data plotted: | 86 |
| [click on plot for closeup] |
Plot 2
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 3.66 | ADU |
| fixed thresholds: | 3.4...3.9 | ADU |
| N_data plotted: | 86 |
| [click on plot for closeup] |
Plot 3
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 3.66 | ADU |
| fixed thresholds: | 3.3...4.0 | ADU |
| N_data plotted: | 86 |
| [click on plot for closeup] |
Plot 4
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 4.08 | ADU |
| fixed thresholds: | 3.7...4.5 | ADU |
| N_data plotted: | 86 |
| [click on plot for closeup] |
Plot 5
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 1.76 | ADU |
| fixed thresholds: | 1.5...2.0 | ADU |
| N_data plotted: | 90 |
| [click on plot for closeup] |
Plot 6
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 2.15 | ADU |
| fixed thresholds: | 1.8...2.5 | ADU |
| N_data plotted: | 90 |
| [click on plot for closeup] |
Plot 7
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 2.25 | ADU |
| fixed thresholds: | 1.9...2.6 | ADU |
| N_data plotted: | 90 |
| [click on plot for closeup] |
Plot 8
scores: 8|
| | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 2.1 | ADU |
| fixed thresholds: | 1.7...2.5 | ADU |
| N_data plotted: | 90 |
| [click on plot for closeup] |
Trending plot for CRIRES RON as determined from DARK exposures.
The read-out noise is measured from the difference of the 3rd and 2nd dark
image using the following procedure:
- generate 100 13x13 pixel windows
- compute the pixel standard deviation in each window
- the read-out noise is the median of these measurements multiplied with
sqrt(NDIT/2).
The trending shows RON from DIT=1sec and DIT=300sec exposures for all
four chips.
General information
Click on any of the plots to see a close-up version.
If applicable, the latest values from Paranal ops logs are plotted as blue dots. More information about those values, including a download option, is available in the OPS column.
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
|
