Plot
? |
Symb
? |
Source
* |
OPS?
** |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
yes (13) |
MEAN |
23.18219 |
|
VAL | 23.0,23.6 |
43 |
zpoint |
this |
last_yr |
all
|
Ks zeropoints for standard stars in S27, VIS |
| 2 |
• | QC1DB |
yes (9) |
MEAN |
24.09877 |
|
VAL | 23.8,24.5 |
36 |
zpoint |
this |
last_yr |
all
|
H zeropoints for standard stars in S27, VIS |
| 3 |
[7] | QC1DB |
yes (9) |
MEAN |
24.28608 |
|
VAL | 24.1,24.5 |
35 |
zpoint |
this |
last_yr |
all
|
J zeropoints for standard stars in S27, VIS |
| |
|
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
|
This plot
Photometric Zeropoints (not corrected for extinction) are shown for
three broad band filters Ks, H and J. They were derived from the
standard star observations taken in camera S27 and VIS dichroic.
General information
Click on any of the plots to see a close-up version.
If applicable, the latest values from Paranal ops logs are plotted as blue dots. More information about those values, including a download option, is available in the OPSLOG section on top of the page.
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
|
