QC PLOTS
	CURRENT	HISTORY
Daily Health Checks:
median level (master)
read-out noise (master)
read-out noise (raw)
structure in X (raw)
structure in Y (raw)
BLUE Modes:
225kHz,1x1,low
50kHz,2x2,high
225kHz,1x2,low
50kHz,2x3,high
625kHz,1x1,low
REDU Modes:
225kHz,1x1,low
50kHz,2x2,high
225kHz,1x2,low
50kHz,2x3,high
625kHz,1x1,low
REDL Modes:
225kHz,1x1,low
50kHz,2x2,high
225kHz,1x2,low
50kHz,2x3,high
625kHz,1x1,low
QC1 uves_bias database (advanced users): browse | plot
Click on CURRENT to see the last trending (Health Check).    Click on HISTORY to see the historical evolution of the trending.

This page refers to the three UVES CCDs, one BLUE and two RED (Upper and Lower). Parameters are measured and trended for each CCD and the 2 standard CCD modes:

• 225kHz,1x1,low: Visitor Mode & Service Mode, monitored daily
• 50kHz,2x2,high: Visitor Mode & Service Mode, monitored daily
• 225kHz,1x2,low: Visitor Mode only, taken only when used during a night
• 50kHz,2x3,high: Visitor Mode only, taken only when used during a night
• 625kHz,1x1,low: Visitor Mode only, taken only when used during a night

QC1 parameters

• median value of master bias (QC1 database table uves_bias, column median_master, product keyword PRO.DATAMED)
  Description: Exact median of the pixel values in the frame. All pixels are taken into account.
• RON value of master bias (QC1 database table uves_bias, column sigma_master, product keyword QC.OUTi.RON.MASTER)
  Description: Read noise frame in ADU
• RON value of first raw frame (QC1 database table uves_bias, column sigma_raw, product keyword QC.OUTi.RON.RAW)
  Description: Read noise frame in ADU
• structure in X direction (QC1 database table uves_bias, column struct_row, product keyword QC.OUTi.STRUCTX)
  Description: Evidence of any possible structure in bias. To have more details on a bias image without saving the full image we collapse it along X or Y and compute the standard deviation of the corresponding point distribution. This is the STRUCTX/Y. A large or suddenly changed value of the structure is indication of some problem on the axis ortogonal to the direction of collapsation.
• structure in Y direction (QC1 database table uves_bias, column struct_col, product keyword QC.OUTi.STRUCTY)
  Description: Evidence of any possible structure in bias. To have more details on a bias image without saving the full image we collapse it along X or Y and compute the standard deviation of the corresponding point distribution. This is the STRUCTX/Y. A large or suddenly changed value of the structure is indication of some problem on the axis ortogonal to the direction of collapsation.