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FORS1 trending system: HISTORY plot
Last update: 2009-02-20T15:13:48 (UT)
same group: U_BESS B_BESS V_BESS R_BESS I_BESS u_HIGH b_HIGH v_HIGH g_HIGH
close window history: 1999 2000 2001 2002 2003 2004 2005 2006 2007   2008   HEALTH
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Print: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
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   30 zeropoint this | last_yr | all Night zeropoint from e-/sec (more than 1 star; Garching)
1 QC1DB none   mag none   5 zeropoint this | last_yr | all Night zeropoint from e-/sec (1 star only; Garching)
1 QC1DB MEDIAN 28.093 mag OFF± 0.07 23 zeropoint this | last_yr | all Night zeropoint from e-/sec (photometric nights only; Garching)
2 QC1DB MEDIAN 0.014 mag VAL0,0.07 35 sigma_zeropoint this | last_yr | all error of night zeropoint from e-/sec (Garching)
3 QC1DB none   mag none   35 zeropoint this | last_yr | all Night zeropoint from e-/sec (more than 1 star; Garching)
3 QC1DB none   mag none   1 zeropoint this | last_yr | all Night zeropoint from e-/sec (1 star only; Garching)
3 QC1DB MEDIAN 28.115 mag OFF± 0.07 29 zeropoint this | last_yr | all Night zeropoint from e-/sec (photometric nights only; Garching)
4 QC1DB MEDIAN 0.011 mag VAL0,0.07 36 sigma_zeropoint this | last_yr | all error of night zeropoint from e-/sec (Garching)
*Data sources: QC1DB: QC1 database; LOCAL: local text file
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