KMOS: Standard stars
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HC PLOTS |
efficiency |
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efficiency per IFU |
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FWHM of PSF |
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QC1 database (advanced users):
browse |
plot
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Telluric standard stars are measured as part of the calibration plan and/or by
special request from the PI.
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Standard star exposure. Example frame in the H band. Only the third IFU is used.
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Efficiency
If flux information is available for the telluric standard then the
instrument efficiency is calculated by the pipeline.
QC1_parameters
FITS key |
QC1 database: table, name |
definition |
class* |
HC_plot** |
more docu |
QC.THRUPUT.MEAN | kmos_std..through_mean | mean throughput | HC | | [docuSys coming] |
QC.THRUPUT | kmos_std..throughput_ifu01 | throughput of IFU 1 | HC | | [docuSys coming] |
*Class: KPI - instrument performance; HC - instrument health; CAL - calibration quality; ENG - engineering parameter
**There might be more than one. |
Throughput is calculated per IFU and as mean over all active IFUs.
Trending
The mean efficiency (throughput) is monitored for all five spectral bands over
time. An additional plot exists to compare the efficiency from one IFU to
another.
Scoring&thresholds Efficiency
Scoring is not implemented.
History
Date |
event |
2014-11 | M1 washing |
2016-08 | M1 coating |
Algorithm Efficiency
Median of the throughput per wavelength, in e-/photon. The parameter
through_mean is the average of the throughput of all active IFUs.
Point spread function
If flux information is available for the telluric standard then the
instrument efficiency is calculated by the pipeline.
QC1_parameters
FITS key |
QC1 database: table, name |
definition |
class* |
HC_plot** |
more docu |
QC.SPAT.RES | kmos_std..psf_fwhm_ifu01 | mean FWHM (in arcsec) of PSF in IFU 1 | HC | | [docuSys coming] |
*Class: KPI - instrument performance; HC - instrument health; CAL - calibration quality; ENG - engineering parameter
**There might be more than one. |
The FWHM of the star PSF is calculated per IFU.
Trending
Trending of the PSF is set up for the three IFUs (4, 12, 19) which are most
frequently used for standard star observations. In order to better detect
differences between the IFUs, also ratio values like PSF(IFU12)/PSF(IFU4) are
plotted.
Scoring&thresholds Point spread function
Scoring is not implemented.
History
None.
Algorithm Point spread function
FWHM of the point spread function in reconstructed IFU images.
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