Plot
? |
Symb
? |
Source
* |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
∗ | QC1DB |
none |
|
|
VAL | 22.5,23.6 |
72 |
zpoint |
this |
last_yr |
all
|
Ks zeropoints for all cameras/dichroics |
| 1 |
• | QC1DB |
MEAN |
23.1226 |
|
VAL | 22.5,23.6 |
26 |
zpoint |
this |
last_yr |
all
|
Ks zeropoints for S27 camera and VIS dichroic |
| 2 |
∗ | QC1DB |
none |
|
|
VAL | 23.8,24.5 |
58 |
zpoint |
this |
last_yr |
all
|
H zeropoints for all cameras/dichroics |
| 2 |
• | QC1DB |
MEAN |
24.036 |
|
VAL | 23.8,24.5 |
24 |
zpoint |
this |
last_yr |
all
|
H zeropoints for S27 camera and VIS dichroic |
| 3 |
∗ | QC1DB |
none |
|
|
VAL | 23.9,24.7 |
48 |
zpoint |
this |
last_yr |
all
|
J zeropoints for all cameras/dichroics |
| 3 |
• | QC1DB |
MEAN |
24.1864 |
|
VAL | 23.9,24.7 |
23 |
zpoint |
this |
last_yr |
all
|
J zeropoints for S27 camera and VIS dichroic |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file
|
| Plot 1 | | data source: | naco_zp
(QC1 database) |
dataset:
(numbers below apply to this dataset) | zpoint | ∗ |
| average: | none |
| fixed thresholds: | 22.5...23.6 | |
| N_data plotted: | 72 |
| [click on plot for closeup] |
| Plot 2 | | data source: | naco_zp
(QC1 database) |
dataset:
(numbers below apply to this dataset) | zpoint | ∗ |
| average: | none |
| fixed thresholds: | 23.8...24.5 | |
| N_data plotted: | 58 |
| [click on plot for closeup] |
| Plot 3 | | data source: | naco_zp
(QC1 database) |
dataset:
(numbers below apply to this dataset) | zpoint | ∗ |
| average: | none |
| fixed thresholds: | 23.9...24.7 | |
| N_data plotted: | 48 |
| [click on plot for closeup] |
Photometric Zeropoints (not corrected for extinction) are shown for
three broad band filters Ks, H and J. They were estimated from the
standard star observations taken in all cameras and dichroics.
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
|
