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*Date on this monitor changes at 21:00 UT | ||||||||||||||||||||||||||||||||||||
| Print: | Information and research: |
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- advanced studies:
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| Plot [info] |
Symbol [info] |
Source* | Average [info] | Thresholds [info] | N_data | Data downloads | Remarks | ||||||||||||
| method | value | unit | method | value | |||||||||||||||
| 1 | • | QC1DB | none | counts/sec | none | 40 | this | last_yr | all | flux of SIMCAL lamp, Medusa1 | |||||||||||
| 2 | • | QC1DB | none | counts/sec | none | 29 | this | last_yr | all | as plot 1, Medusa2 | |||||||||||
| 3 | • | QC1DB | none | counts/sec | none | 27 | this | last_yr | all | as plot 1, IFU1 | |||||||||||
| 4 | • | QC1DB | none | counts/sec | none | 26 | this | last_yr | all | as plot 1, IFU2 | |||||||||||
| 5 | • | QC1DB | none | counts/sec | none | 26 | this | last_yr | all | as plot 1, Argus | |||||||||||
| 7 | • | QC1DB | MEAN | 1.348 | ratio to Medusa1 | 3SIG | ± 0.293 | 26 | computed ratio Med2/Med1 (no data available for download) | ||||||||||
| 8 | • | QC1DB | MEAN | 0.501 | same | 3SIG | ± 0.170 | 26 | as plot 7, IFU1/Medusa1 | ||||||||||
| 9 | • | QC1DB | MEAN | 0.353 | same | 3SIG | ± 0.119 | 26 | as plot 7, IFU2/Medusa1 | ||||||||||
| 10 | • | QC1DB | MEAN | 0.171 | same | 3SIG | ± 0.118 | 26 | as plot 7, Argus/Medusa1 | ||||||||||
| *Data sources: QC1DB: QC1 database; LOCAL: local text file | |||||||||||||||||||
This is the trending plot monitoring the stability of the GIRAFFE SIMCAL arclamp and the 5 fibre systems. These data are derived from the daily SIMLAMP,TAL health check measurements (5 with the HR grating, H525.8B setting).
Plots 1-5.For each of the five fibre systems, an emission line is selected, its intensity is integrated and divided by the EXPTIME. The resulting flux, in counts/sec, is trended over time.
Plots 7-10. 4 slit systems are ratioed against the Medusa1 system. Since all slits are illuminated by the same lamp, lamp effects cancel out, while effects of the specific fibre system are enhanced.
If a certain trend effect is visible in *all* four slits, it is likely to occur in Medusa1. If it shows up in one fibre system only, it originates in that particular slit.
Find more information here. The SIMLAMP data are also used to evaluate the grating stability.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