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| QC PLOTS |
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CURRENT |
HISTORY |
| Daily Health Checks: |
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| median level (master) |
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| read-out noise (master) |
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| read-out noise (raw) |
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| structure in X (raw) |
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| structure in Y (raw) |
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| BLUE Modes: |
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| 225kHz,1x1,low |
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| 50kHz,2x2,high |
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| 225kHz,1x2,low |
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| 50kHz,2x3,high |
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| 625kHz,1x1,low |
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| REDU Modes: |
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| 225kHz,1x1,low |
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| 50kHz,2x2,high |
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| 225kHz,1x2,low |
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| 50kHz,2x3,high |
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| 625kHz,1x1,low |
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| REDL Modes: |
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| 225kHz,1x1,low |
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| 50kHz,2x2,high |
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| 225kHz,1x2,low |
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| 50kHz,2x3,high |
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| 625kHz,1x1,low |
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| QC1 uves_bias database (advanced users):
browse
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plot
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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
Trending Plots are presented in TWO formats. the first gathers together a specific parameter for each Readout Mode monitored with the Daily Heath Checks.
The second gathers together all trended parameters for each readout mode.
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.
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