Plot ? |
Symb ? |
Source * |
OPS? ** |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
| QC1DB |
no |
none |
|
ADU |
none | |
90 |
qc_ul_stdev |
this |
last_yr |
all
|
raw checkflat stdev in UL 100x100 pixel window |
| 3 |
| QC1DB |
no |
none |
|
ADU |
none | |
90 |
qc_ur_stdev |
this |
last_yr |
all
|
raw checkflat stdev in LL 100x100 pixel window |
| 2 |
| QC1DB |
no |
none |
|
ADU |
none | |
90 |
qc_cc_stdev |
this |
last_yr |
all
|
raw checkflat stdev in CC 100x100 pixel window |
| 4 |
| QC1DB |
no |
none |
|
ADU |
none | |
90 |
qc_ll_stdev |
this |
last_yr |
all
|
raw checkflat stdev in UR 100x100 pixel window |
| 6 |
| QC1DB |
no |
none |
|
ADU |
none | |
90 |
qc_lr_stdev |
this |
last_yr |
all
|
raw checkflat stdev in LR 100x100 pixel window |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
|
This plot
This is the trending plot of the daily check flat
taken as part of the daily health check procedure.
This plot describes standard deviation of RAW checkflat frames:
1. The standard deviation in UL window from 50,874 to 150,974, size=100x100, 50 pixels away from the edge of the raw checkflat frame
2. The standard deviation in CC window from 462,462 to 562,562, size=100x100, center of the array of the raw checkflat frame
3. The standard deviation in UR window from 874,874 to 974,974, size=100x100, 50 pixels away from the edge of the raw checkflat frame
4. The standard deviation in LL window from 50,50 to 150,150, size=100x100, 50 pixels away from the edge of the raw checkflat frame
6. The standard deviation in LR window from 874,50 to 974,150, size=100x100, 50 pixels away from the edge of the raw checkflat frame
Find more information about ISAAC checkflat frames
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, 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
|