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| Plot [info] |
Symbol [info] |
Source* | Average [info] | Thresholds [info] | N_data | Data downloads | Remarks | ||||
| method | value | unit | method | value | |||||||
| 2 | • | QC1DB | none | ADU | none | 17 | this | last_yr | all | grating offset in pixel for LW, LR, SH | |||
| 3 | • | QC1DB | none | ADU | none | 18 | this | last_yr | all | grating offset in pixel for LW, LR, SL | |||
| 4 | • | QC1DB | none | ADU | none | 0 | this | last_yr | all | grating offset in pixel for LW, MR, J+Block | |||
| 5 | • | QC1DB | none | ADU | none | 4 | this | last_yr | all | grating offset in pixel for LW, MR, SH | |||
| 6 | • | QC1DB | none | ADU | none | 1 | this | last_yr | all | grating offset in pixel for LW, MR, SL | |||
| *Data sources: QC1DB: QC1 database; LOCAL: local text file | |||||||||||
This is the trending plot for the ISAAC arc lamp calibrations of the LW-arm
The QC parameter is the offset between the nominal central wavelength (read from the fits header INS.GRAT.WLEN) and the central wavelength derived from the wavelength solution of the pipeline recipe (HIERARCH ESO QC WLEN) . The offset is given in pixel units. For all setups in the LW-arm: Both Argon and Xenon lamps are on.
These plots describe:
2. Offset for LW-arm, LR-grating, SH-filter.
3. Offset for LW-arm, LR-grating, SL-filter.
4. Offset for LW-arm, MR-grating, J+Block-filter.
5. Offset for LW-arm, MR-grating, SH-filter.
6. Offset for LW-arm, MR-grating, SL-filter..
Find more information about ISAAC QC parameters derived from arc frames here.
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,
General information