VIMOS trending system: HISTORY plot
Last update: 2008-01-13T05:18:02 (UT)
same group: LR_blue LR_red MR HR_blue HR_orange HR_red
close window history: 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018   HEALTH FULL
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*Date on this monitor changes at 21:00 UT
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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 MEDIAN 0.175 none none   35 this | last_yr | all efficiency at 6500A
2 •QC1DB MEDIAN 0.187 none none   35 this | last_yr | all efficiency at 6500A
3 •QC1DB MEDIAN 0.179 none none   31 this | last_yr | all efficiency at 6500A
4 •QC1DB MEDIAN 0.195 none none   32 this | last_yr | all efficiency at 6500A
*Data sources: QC1DB: QC1 database; LOCAL: local text file
This plot

Trending plot for the overall MOS efficiency, measured using spectrophotometric standard stars.

The following settings are used:
LR_blue grism + OS-blue filter
LR_red grism + OS-red filter
MR grism + GG475 filter
HR_blue grism (without filter)
HR_orange grism + GG435 filter
HR_red grism + GG475 filter

The thresholds for scoring are set for monitoring the quality of the individual calibration. Outliers could indicate that the measurement was done through (thin) clouds or that the star was not correctly centered on the slit. Such measurements should be repeated.

A new HR_blue grism has been installed in March 2012. The plots for HR_blue show the efficiency at 5700A until 2011. From 2012 onwards, these plots are for the efficiency at 4500A.

Template ID: mos_cal_Specphot. Pipeline recipe: vmmosstandard.

Plots that show the efficiency vs. wavelength have been created by averaging several standard star measurements. They show the efficiency before and after the 2010 instrument upgrade. Measurements with the new HR_blue grism from March 2012 are included here.  

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