[page auto-refreshes after 300 sec]   [stop | on]            [press Ctrl+Shift+R to enforce refresh of scores, dates and news]
GIRAFFE trending system: HISTORY report
HELP USERS-GUIDE MORE
Last update: 2019-03-28T13:23:56 (UT)
same group: bias_Normal bias_Fast
close window history: 2003 2004 2005 2006   2007   2008   2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024   HEALTH FULL
  ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ...
*Date on this monitor changes at 21:00 UT
png: Information and research:
- png file - advanced studies: QC1 browser | QC1 plotter
- reference bias
Plot
?
Symb
?
Source
*
Average ? Thresholds ? N_
data
QC1
parameter
Data
downloads
Remarks
method value unit method value
1 QC1DB MEAN 152 ADU none  71 median_master this | last_yr | all median BIAS level
2 QC1DB MEAN 4 e- none  71 sigma_raw this | last_yr | all RON in single raw frame
downloaded data come in ADU (=e-/2.30)
3 QC1DB MEDIAN 2.2 e- 10%± 0.22 71 sigma_master this | last_yr | all RON in master frame
downloaded data come in ADU (=e-/2.30)
4 xQC1DB MEDIAN 0.077 ADU none  71 struct_row this | last_yr | all structure of master in X direction
5 xQC1DB MEDIAN 0.441 ADU none  71 struct_col this | last_yr | all structure of master in Y direction
*Data sources: QC1DB: QC1 database; LOCAL: local data source
Plot 1
data source:giraffe_bias
(QC1 database)
dataset:median_master
mean:152ADU
thresholds:none 
N_data plotted:71
[click plot for closeup]
Plot 2
data source:giraffe_bias
(QC1 database)
dataset:sigma_raw
mean:4e-
thresholds:none 
N_data plotted:71
[click plot for closeup]
Plot 3
data source:giraffe_bias
(QC1 database)
dataset:sigma_master
median:2.2e-
rel. thresholds: ±10%1.97892...2.41868e-
N_data plotted:71
[click plot for closeup]
Plot 4
data source:giraffe_bias
(QC1 database)
dataset:struct_rowx
median:0.077ADU
thresholds:none 
N_data plotted:71
[click plot for closeup]
Plot 5
data source:giraffe_bias
(QC1 database)
dataset:struct_colx
median:0.441ADU
thresholds:none 
N_data plotted:71
[click plot for closeup]
This plot

This is the trending plot for the GIRAFFE QC parameters derived from BIAS frames.

These plots describe:
1. the BIAS level in masterbias frames,
2. the read noise (RON) of a single raw frame,
3. the read noise (RON) of a master frame,
4. the collapsed structure of a masterbias in X direction,
5. the collapsed structure in Y direction,
6. the number of bad pixels.

Find more information about GIRAFFE BIAS frames here.

Other QC parameters related to detector properties (like contamination, linearity, gain) are trended 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.

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