FORS2 trending system: HEALTH CHECK plot
Last update: 2007-03-13T12:38:36 (UT) | last data from: 2007-02-26
other plots from the same group: lambda_c resolution rms_resol. nlines
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Plot Symbol
[info]		 Source* Average [info] Thresholds [info] N_data Data downloads Remarks
method value unit method value
1 •OPSLOG none  NONE none   0 n/a C1 (Paranal, GG375)
1 •QC1DB MEDIAN16300.000 NONE 3SIG± 1464.583 1 this | last_yr | all C1 (Garching, GG375)
2 •OPSLOG none  NONE none   0 n/a C2 (Paranal, GG375)
2 •QC1DB MEDIAN12130.000 NONE 3SIG± 1086.241 1 this | last_yr | all C2 (Garching, GG375)
3 •OPSLOG none  NONE none   0 n/a C1 (Paranal, GG435)
3 •QC1DB MEDIAN10816.000 NONE 3SIG± 6791.303 2 this | last_yr | all C1 (Garching, GG435)
4 •OPSLOG none  NONE none   0 n/a C2 (Paranal, GG435)
4 •QC1DB MEDIAN9269.000 NONE 3SIG± 3895.360 2 this | last_yr | all C2 (Garching, GG435)
*Data sources: OPSLOG: Paranal ops logs; QC1DB: QC1 database; LOCAL: local text file
This plot

Number of lines used in the computation of the mean spectral resolution. The values trended here are for the 300V grism with a slit width of 1.0" and the order separation filters GG375 and GG435, respectively.  

General information

Click on any of the plots to see a close-up version.

If applicable, the 20 latest values from Paranal ops logs are plotted as blue dots.

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