Plot ? |
Symb ? |
Source * |
Average ? |
Thresholds ? |
N_ data |
QC1 parameter |
Data downloads |
Remarks |
method |
value |
unit |
method |
value |
1 |
| QC1DB |
MEDIAN |
2.72e+05 |
ADU/Jy |
none | |
44 |
conver |
this |
last_yr |
all
|
conversion factor for the SF, pfov=0.075 |
2 |
| QC1DB |
MEDIAN |
2.92e+04 |
ADU/Jy |
none | |
39 |
conver |
this |
last_yr |
all
|
conversion factor for the IF, pfov=0.127 |
|
*Data sources: QC1DB: QC1 database; LOCAL: local data source
|
Plot 1 scores: not implemented
| data source: | visir_zp_img (QC1 database) |
dataset: | conver | |
median: | 2.72e+05 | ADU/Jy |
thresholds: | none | |
N_data plotted: | 44 |
[click on plot for closeup] |
Plot 2 scores: not implemented
| data source: | visir_zp_img (QC1 database) |
dataset: | conver | |
median: | 2.92e+04 | ADU/Jy |
thresholds: | none | |
N_data plotted: | 39 |
[click on plot for closeup] |
This plot
Historical values of the conversion factor from imaging standard star
observations using the pre-upgrade detector.
Only data taken with the PAH1 filter are selected. The plot is separated
into small-field (SF) pixel field of view (0.075 arcsec/pixel) and
intermediate-field (IF) pixel field of view (0.127 arcsec/pixel).
The conversion factor describes the conversion between ADU and Jy. It is
computed as: F(tot.observed) / F(model) [ADU/Jy], where F corresponds
to flux and F(model) is the model predicted flux of the standard star
from a catalog.
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
|