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FORS2:
zeropoints: night
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FORS2 trending system: HEALTH CHECK report
Last update: 2012-01-25T07:50:31 (UT)
| now: 2012-05-26T08:26:08 (UT)
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same group: U_SPEC B_BESS V_BESS
General news:
FORS2 news:  
Report news:  
DATE*: [?] 2012-05-19
report | NR
2012-05-20
report | NR
2012-05-21
report | NR
2012-05-22
report | NR
2012-05-23
report | NR
2012-05-24
report | NR
2012-05-25
no data | NR
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- png file - advanced studies: QC1 browser | QC1 plotter
Plot
?
Symb
?
Source
*
OPS?
**
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB no none   mag none   42 zeropoint this | last_yr | all Night zeropoint in e- (Garching)
1 QC1DB no MEDIAN 24.202 mag OFF± 0.07 29 zeropoint this | last_yr | all Night zeropoint in e- (photometric nights only; Garching)
3 QC1DB no none   mag none   41 zeropoint this | last_yr | all Night zeropoint in e- (Garching)
3 QC1DB no MEDIAN 24.289 mag OFF± 0.07 28 zeropoint this | last_yr | all Night zeropoint in e- (photometric nights only; Garching)
2 QC1DB no MEDIAN 0.03 mag VAL0,0.07 42 sigma_zeropoint this | last_yr | all error of night zeropoint from e-/sec (Garching)
4 QC1DB no MEDIAN 0.033 mag VAL0,0.07 41 sigma_zeropoint this | last_yr | all error of night zeropoint from e-/sec (Garching)
*Data sources: QC1DB: QC1 database; LOCAL: local text file | **OPS: to indicate that OPSLOG data are included
Plot 1
scores: not implemented
data source:fors2_zp_night
(QC1 database)
dataset:
(numbers below apply to this dataset)
zeropoint
average:none
thresholds:none
N_data plotted:42
[click on plot for closeup]
Plot 3
scores: not implemented
data source:fors2_zp_night
(QC1 database)
dataset:
(numbers below apply to this dataset)
zeropoint
average:none
thresholds:none
N_data plotted:41
[click on plot for closeup]
Plot 2
scores: not implemented
data source:fors2_zp_night
(QC1 database)
dataset:sigma_zeropoint
median:0.03mag
fixed thresholds:0.0...0.07mag
N_data plotted:42
[click on plot for closeup]
Plot 4
scores: not implemented
data source:fors2_zp_night
(QC1 database)
dataset:sigma_zeropoint
median:0.033mag
fixed thresholds:0.0...0.07mag
N_data plotted:41
[click on plot for closeup]
This plot

Trending is done only for the SR collimator. Photometric nights are selected from the Absorption Monitor. Zeropoints are per night for flux in e-/sec, not in ADU. Do not use these zeropoints for science data. They are reduced assuming a standard extinction value, which may not be correct for an individual night! Large uncertainties are mostly due to nights with few stars. More information can be found on the plot tutorial page  


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