| same group: |  read-noise |
read-noise12 |
dark |
nbadpix |
det-temp |
| close window | history: | 2006 | 2007 | 2008 | HEALTH | |||||||
|
 |
|
 |
|
|
|
|
 |
||||
| Print: | Information and research: |
| - png file |
| Plot [info] |
Symbol [info] |
Source* | Average [info] | Thresholds [info] | N_data | Data downloads | Remarks | ||||
| method | value | unit | method | value | |||||||
| 1 | • | LOCAL | MEAN | 109.350 | 3SIG | ± 69.727 | 91 | n/a | read-out-noise of the imaging detector | ||
| 2 | • | LOCAL | MEAN | 50.564 | 3SIG | ± 244.036 | 107 | n/a | read-out-noise of the spectroscopic detector | ||
| *Data sources: QC1DB: QC1 database; LOCAL: local text file | |||||||||||
This is a trending plot monitoring the read-out-noise (RON) measured from the raw(3)-raw(2) difference frame. It's been introduced since November 2007. The RON values are displayed for both, the imaging and spectroscopic detectors. The data points for the spectroscopic detector include those taken in MR (values around 150) and in HRS (values around 180).
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