Plot ? 
Symb ? 
Source * 
Average ? 
Thresholds ? 
N_ data 
QC1 parameter 
Data downloads 
Remarks 
method 
value 
unit 
method 
value 
1 
•  QC1DB 
MEDIAN 
0.132 
Efficiency (frac.) 
VAL  0.05,0.175 
89 
max_effic 
this 
last_yr 
all

Efficiency measured on STD at central wavelength: DI1, 564 REDL 
2 
•  QC1DB 
MEDIAN 
0.135 
Efficiency (frac.) 
VAL  0.05,0.175 
91 
max_effic 
this 
last_yr 
all

DI1, 580 REDL 
3 
•  QC1DB 
MEDIAN 

Efficiency (frac.) 
VAL  0.05,0.175 
0 
max_effic 
this 
last_yr 
all

DI2, 760 REDL 
4 
•  QC1DB 
MEDIAN 
0.127 
Efficiency (frac.) 
VAL  0.05,0.175 
90 
max_effic 
this 
last_yr 
all

DI2, 860 REDL 
5 
•  QC1DB 
MEDIAN 
0.13 
Efficiency (frac.) 
VAL  0.05,0.175 
89 
max_effic 
this 
last_yr 
all

DI1, 564 REDU 
6 
•  QC1DB 
MEDIAN 
0.131 
Efficiency (frac.) 
VAL  0.05,0.175 
91 
max_effic 
this 
last_yr 
all

DI1, 580 REDU 
7 
•  QC1DB 
MEDIAN 

Efficiency (frac.) 
VAL  0.02,0.175 
0 
max_effic 
this 
last_yr 
all

DI2, 760 REDU 
8 
•  QC1DB 
MEDIAN 
0.131 
Efficiency (frac.) 
VAL  0.02,0.175 
90 
max_effic 
this 
last_yr 
all

DI2, 860 REDU 

*Data sources: QC1DB: QC1 database; LOCAL: local data source

Plot 1 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  0.132  Efficiency (frac.) 
fixed thresholds:  0.05...0.175  Efficiency (frac.) 
N_data plotted:  89 
[click on plot for closeup] 
Plot 2 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  0.135  Efficiency (frac.) 
fixed thresholds:  0.05...0.175  Efficiency (frac.) 
N_data plotted:  91 
[click on plot for closeup] 
Plot 3 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  no data  Efficiency (frac.) 
fixed thresholds:  0.05...0.175  Efficiency (frac.) 
N_data plotted:  0 
[click on plot for closeup] 
Plot 4 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  0.127  Efficiency (frac.) 
fixed thresholds:  0.05...0.175  Efficiency (frac.) 
N_data plotted:  90 
[click on plot for closeup] 
Plot 5 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  0.13  Efficiency (frac.) 
fixed thresholds:  0.05...0.175  Efficiency (frac.) 
N_data plotted:  89 
[click on plot for closeup] 
Plot 6 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  0.131  Efficiency (frac.) 
fixed thresholds:  0.05...0.175  Efficiency (frac.) 
N_data plotted:  91 
[click on plot for closeup] 
Plot 7 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  no data  Efficiency (frac.) 
fixed thresholds:  0.02...0.175  Efficiency (frac.) 
N_data plotted:  0 
[click on plot for closeup] 
Plot 8 scores: not implemented
 data source:  uves_std (QC1 database) 
dataset:  max_effic  • 
median:  0.131  Efficiency (frac.) 
fixed thresholds:  0.02...0.175  Efficiency (frac.) 
N_data plotted:  90 
[click on plot for closeup] 
This plot
This is the trending report for UVES QC parameters derived from
standard star observations.
UVES flux standard stars are observed for two purposes: for flux calibration,
with
a frequency of approximately once per 3 days during nighttime, and for
system efficiency monitoring
approximately once per 14 days. In both cases
observations are made in 3 dichroic settings:
DI1 346+580, DI1
390+564 and DIC#2 437+860. The CCD readout mode is always
225kHz,1x1,low. Observations are made with a 5 or a 10 arcsec
slit.
The measured efficiency is then the maximum efficiency at
the center of an order closest to the central wavelength of the
wavelength setting.
The individual plots describe the measured efficiency for the three wavelength
settings DI1 564, DI1 580, and DI2 860, for the RED LOWER chip (upper panel)
and the RED UPPER chip (lower panel).
These reports are not scored since an outlier might be due to bad atmospheric
conditions rather than indicate an issue with the instrument. Interpretation
of the reports requires knowledge of the actual conditions during the night.
Find more information about UVES Efficiency monitoring here.
General information
Click on any of the plots to see a closeup 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
