Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
| QC1DB |
MEAN |
-32.3 |
pixels |
VAL | -200.,200. |
1064 |
qc_deltax_shift |
this |
last_yr |
all
|
WCS shift in X direction averaged over all CCDs |
2 |
| QC1DB |
MEAN |
8.87 |
pixels |
VAL | -200.,200. |
1064 |
qc_deltay_shift |
this |
last_yr |
all
|
WCS shift in Y direction averaged over all CCDs |
|
*Data sources: QC1DB: QC1 database; LOCAL: local data source
|
Plot 1 scores: 103|
| data source: | omegacam_std (QC1 database) |
dataset: | qc_deltax_shift | |
mean: | -32.3 | pixels |
fixed thresholds: | -200.0...200.0 | pixels |
N_data plotted: | 1064 |
[click plot for closeup] |
Plot 2 scores: 103|
| data source: | omegacam_std (QC1 database) |
dataset: | qc_deltay_shift | |
mean: | 8.87 | pixels |
fixed thresholds: | -200.0...200.0 | pixels |
N_data plotted: | 1064 |
[click plot for closeup] |
This plot
Trending plots for WCS shift from standard star observations.
QC parameters are derived from each of 32 detectors of OmegaCAM STD
frames. Data in all filters, excluding composite filter u_g_r_i_SDSS,
are combined in this plot.
DB Name: omegacam_std
Fits header: QC.DELTAX.SHIFT / QC.DELTAY_SHIFT
QC1 DB: qc_deltax_shift / qc_deltay_shift
Description:
The WCS shift in the STD observations measured in X and
Y-direction [pix].
These Health Check plots describe: Fig. 1
shift_x: The WCS shift in X direction averaged over all 32
detectors [pix].
Fig. 2 shift_y: The WCS shift in Y direction averaged over all 32
detectors [pix].
OmegaCAM detector plane layout (detector_ID locations):
General information
Click on any of the plots to see a close-up version.
The latest date is indicated on top of the plot.
If configured,
- data points belonging to the latest date are specially marked
- 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
|