Plot
? |
Symb
? |
Source
* |
OPS?
** |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
|
none |
|
ADU |
none | |
11 |
qc_ul_R_stdev |
this |
last_yr |
all
|
raw checkflat stdev in UL 100x100 pixel window |
| 3 |
• | QC1DB |
|
none |
|
ADU |
none | |
11 |
qc_ur_R_stdev |
this |
last_yr |
all
|
raw checkflat stdev in LL 100x100 pixel window |
| 2 |
• | QC1DB |
|
none |
|
ADU |
none | |
11 |
qc_cc_R_stdev |
this |
last_yr |
all
|
raw checkflat stdev in CC 100x100 pixel window |
| 4 |
• | QC1DB |
|
none |
|
ADU |
none | |
11 |
qc_ll_R_stdev |
this |
last_yr |
all
|
raw checkflat stdev in UR 100x100 pixel window |
| 6 |
• | QC1DB |
|
none |
|
ADU |
none | |
11 |
qc_lr_R_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 the standard deviation of product checkflat frames.
The product is simply : raw checkflat divided by the reference chekflat :
1. The stdev in UL window from 206,718 to 306,818, size=100x100, centered in UL quadrant at 256,768
2. The stdev in CC window from 462,462 to 562,562, size=100x100, centered in 512,512
3. The stdev in UR window from 718,718 to 818,818, size=100x100, centered in UR quadarant at 768,768
4. The stdev in LL window from 206,206 to 306,306, size=100x100, centered in LL quadrant at 256,256
6. The stdev in LR window from 718,206 to 818,306, size=100x100, centered in LR quadrant at 768,768
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
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