Plot
? |
Symb
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Source
* |
OPS?
** |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
no |
MEDIAN |
0.0379 |
ADU |
40% | ± 0.0151 |
152 |
slice_rms |
this |
last_yr |
all
|
rms over three slice window counts |
| 2 |
• | QC1DB |
no |
MEDIAN |
0.684 |
ratio |
5% | ± 0.0342 |
152 |
flux_order_ratio |
this |
last_yr |
all
|
illumination slope in cross-dispersed direction |
| 3 |
• | QC1DB |
no |
MEDIAN |
0.0116 |
ADU |
40% | ± 0.00462 |
152 |
slice2_rms |
this |
last_yr |
all
|
rms over three slice window counts |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: OPSLOG data are included
|
Plot 1
scores:  14|
| | data source: | xshooter_flat
(QC1 database) |
| dataset: | slice_rms | • |
| median: | 0.0379 | ADU |
| rel. thresholds: ±40% | 0.0227142...0.0529998 | ADU |
| N_data plotted: | 152 |
| [click on plot for closeup] |
Plot 2
scores: 14|
| | data source: | xshooter_flat
(QC1 database) |
| dataset: | flux_order_ratio | • |
| median: | 0.684 | ratio |
| rel. thresholds: ±5% | 0.649951525...0.718367475 | ratio |
| N_data plotted: | 152 |
| [click on plot for closeup] |
Plot 3
scores: no current data
| | data source: | xshooter_flat
(QC1 database) |
| dataset: | slice2_rms | • |
| median: | 0.0116 | ADU |
| rel. thresholds: ±40% | 0.006936...0.016184 | ADU |
| N_data plotted: | 152 |
| [click on plot for closeup] |
This plot shows two QC parameters measuring the
illumination distribution within IFU FLATs.
In a first step the median counts are measured in six dedicated windows:
S1R (slice 1 in red order), S2R (slice 2 in red order) , S3R,
S1B (slice 1 in blue order), S2B and S3B.
The QC parameter slice_rm is the rms of the three red order slice
counts.
The QC parameter flux_order_ratio is a relative difference between
the two flux averages:
fr = ( S1R + S2R + S3R ) / 3.0
fb = ( S1B + S2B + S3B ) / 3.0
flux_order_ratio = (fr - fb) / fr
The windows currently (2012-07-06) in use are (x1, y1, x2, y2)
coords given in pixels of the master flat product:
- UVB S1R: '1452 1500 1471 1600'
- UVB S2R: '1477 1500 1493 1600'
- UVB S3R: '1501 1500 1518 1600'
- UVB S1B: ' 513 2330 532 2380'
- UVB S2B: ' 539 2330 557 2380'
- UVB S3B: ' 564 2330 582 2380'
- VIS S1R: '1652 2050 1666 2100'
- VIS S2R: '1674 2050 1684 2100'
- VIS S3R: '1697 2050 1711 2100'
- VIS S1B: ' 426 2605 444 2757'
- VIS S2B: ' 452 2605 470 2757'
- VIS S3B: ' 477 2605 496 2757'
- NIR S1R: '622 1133 632 1175'
- NIR S2R: '638 1133 647 1175'
- NIR S3R: '655 1133 665 1175'
- NIR S1B: '125 1080 135 1111'
- NIR S2B: '143 1080 152 1111'
- NIR S3B: '160 1080 169 1111'
- values before format shift from 2013-02-15
- NIR S1R: '620 1133 630 1175'
- NIR S2R: '636 1133 646 1175'
- NIR S3R: '653 1133 663 1175'
- NIR S1B: '123 1080 133 1111'
- NIR S2B: '141 1080 150 1111'
- NIR S3B: '158 1080 167 1111'
2013-03-22: The UVB windows have been made narrower
The window sizes and positions are preliminmary and will be reviewed
to optimize the sensitivity.
2013-05-27: in the UVB-arm, blue orders are illuminated by the D2 lamp (< 350
nm) and red orders are illuminated by the QTH lamp (> 350 nm).
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
|
mirror sites:
PL (internal
link) HQ
[?]
score overview
