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| FORS1 trending system: HISTORY plot |
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Last update: 2009-04-02T15:47:45 (UT)
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Plot
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Symb
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Source
* |
Average ? |
Thresholds ? |
N_
data |
QC1
parameter |
Data
downloads |
Remarks |
| method |
value |
unit |
method |
value |
| 1 |
• | QC1DB |
none |
|
mag |
none | |
35 |
zeropoint |
this |
last_yr |
all
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Night zeropoint from e-/sec (more than 1 star) |
| 1 |
• | QC1DB |
MEDIAN |
28.799 |
mag |
OFF | ± 0.1 |
28 |
zeropoint |
this |
last_yr |
all
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Night zeropoint from e-/sec (photometric nights only) |
| 2 |
• | QC1DB |
MEDIAN |
0.022 |
mag |
VAL | 0,0.1 |
35 |
sigma_zeropoint |
this |
last_yr |
all
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error of night zeropoint from e-/sec |
| 3 |
• | QC1DB |
none |
|
mag |
none | |
34 |
zeropoint |
this |
last_yr |
all
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Night zeropoint from e-/sec (more than 1 star) |
| 3 |
• | QC1DB |
MEDIAN |
28.829 |
mag |
OFF | ± 0.1 |
27 |
zeropoint |
this |
last_yr |
all
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Night zeropoint from e-/sec (photometric nights only) |
| 4 |
• | QC1DB |
MEDIAN |
0.033 |
mag |
VAL | 0,0.1 |
34 |
sigma_zeropoint |
this |
last_yr |
all
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error of night zeropoint from e-/sec |
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*Data sources: QC1DB: QC1 database; LOCAL: local text file
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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!
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
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