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| FORS2 trending system: HISTORY report |
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Last update: 2017-04-09T03:53:06 (UT)
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*Date on this monitor changes at 21:00 UT |
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| Print: |
Information and research: |
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- png file
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- advanced studies:
QC1 browser |
QC1 plotter
- general comment: after CCD exchanges the thresholds usually need to be adjusted.
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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 |
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Å |
VAL | 5857.0,5873.0 |
88 |
central_wlen |
this |
last_yr |
all
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central wavelength for chip 1 |
| 2 |
• | QC1DB |
none |
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Å |
VAL | 5857.0,5873.0 |
87 |
central_wlen |
this |
last_yr |
all
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central wavelength for chip 2 |
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*Data sources: QC1DB: QC1 database; LOCAL: local data source
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| Plot 1 | | data source: | fors2_lss_wave
(QC1 database) |
| dataset: | central_wlen | • |
| average: | none |
| fixed thresholds: | 5857.0...5873.0 | Å |
| N_data plotted: | 88 |
| [click on plot for closeup] |
| Plot 2 | | data source: | fors2_lss_wave
(QC1 database) |
| dataset: | central_wlen | • |
| average: | none |
| fixed thresholds: | 5857.0...5873.0 | Å |
| N_data plotted: | 87 |
| [click on plot for closeup] |
After the wavelength calibration is obtained from an LSS arc lamp exposure,
the wavelength corresponding to the central CCD pixel is calculated. The
values trended here are for the red sensitive MIT detector, the 300V grism with no filter and a slit width of 0.29".
DB Name: fors2_lss_wave
TPL.ID: FORS2_lss_cal_daycalib
QC1 DB parameter: central_wlen
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.
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
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