Plot
? |
Symb
? |
Source
* |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
MEDIAN |
3.44 |
ADU |
VAL | 3.3,3.65 |
91 |
ron23 |
this |
last_yr |
all
|
RON, chip 1, DIT=1 |
| 2 |
• | QC1DB |
MEDIAN |
3.62 |
ADU |
VAL | 3.4,3.9 |
90 |
ron23 |
this |
last_yr |
all
|
RON, chip 2, DIT=1 |
| 3 |
• | QC1DB |
MEDIAN |
3.65 |
ADU |
VAL | 3.3,4.0 |
91 |
ron23 |
this |
last_yr |
all
|
RON, chip 3, DIT=1 |
| 4 |
• | QC1DB |
MEDIAN |
4.04 |
ADU |
VAL | 3.7,4.5 |
91 |
ron23 |
this |
last_yr |
all
|
RON, chip 4, DIT=1 |
| 5 |
• | QC1DB |
MEDIAN |
1.74 |
ADU |
VAL | 1.5,2.0 |
97 |
ron23 |
this |
last_yr |
all
|
RON, chip 1, DIT=300 |
| 6 |
• | QC1DB |
MEDIAN |
2.05 |
ADU |
VAL | 1.8,2.5 |
97 |
ron23 |
this |
last_yr |
all
|
RON, chip 2, DIT=300 |
| 7 |
• | QC1DB |
MEDIAN |
2.17 |
ADU |
VAL | 1.9,2.6 |
97 |
ron23 |
this |
last_yr |
all
|
RON, chip 3, DIT=300 |
| 8 |
• | QC1DB |
MEDIAN |
2.03 |
ADU |
VAL | 1.7,2.5 |
97 |
ron23 |
this |
last_yr |
all
|
RON, chip 4, DIT=300 |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file
|
| Plot 1 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 3.44 | ADU |
| fixed thresholds: | 3.3...3.65 | ADU |
| N_data plotted: | 91 |
| [click on plot for closeup] |
| Plot 2 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 3.62 | ADU |
| fixed thresholds: | 3.4...3.9 | ADU |
| N_data plotted: | 90 |
| [click on plot for closeup] |
| Plot 3 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 3.65 | ADU |
| fixed thresholds: | 3.3...4.0 | ADU |
| N_data plotted: | 91 |
| [click on plot for closeup] |
| Plot 4 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 4.04 | ADU |
| fixed thresholds: | 3.7...4.5 | ADU |
| N_data plotted: | 91 |
| [click on plot for closeup] |
| Plot 5 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 1.74 | ADU |
| fixed thresholds: | 1.5...2.0 | ADU |
| N_data plotted: | 97 |
| [click on plot for closeup] |
| Plot 6 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 2.05 | ADU |
| fixed thresholds: | 1.8...2.5 | ADU |
| N_data plotted: | 97 |
| [click on plot for closeup] |
| Plot 7 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 2.17 | ADU |
| fixed thresholds: | 1.9...2.6 | ADU |
| N_data plotted: | 97 |
| [click on plot for closeup] |
| Plot 8 | | data source: | crires_dark
(QC1 database) |
| dataset: | ron23 | • |
| median: | 2.03 | ADU |
| fixed thresholds: | 1.7...2.5 | ADU |
| N_data plotted: | 97 |
| [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.
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
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