VLT-MAN-ESO-14650-4942
P96
24.06.2015
92 of 161
ESO, Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany
c) Calibration plan
The calibration plan is defined below. It may evolve in the next months/periods.
Table 6bis: Calibration plan.
on request, 3x10s monthly
XSHOOTER_img_obs_cal_phot
once per year or user provided
XSHOOTER_img_obs_cal_dist
once per year or user provided
*The count levels of the twilight flats should be between 10000 and 55000 ADUs. In P93 they
will be taken pointing to empty sky positions while until P92 they are taken at the zenith (thus
star traces may be possible).
d) Quality control
Some health check plots of the AGCCD are available at:
http://www.eso.org/observing/dfo/quality/XSHOOTER/reports/HEALTH/trend_report_BIAS_A
GC_HC.html
the bias level, the readout noise, the noise structure, the dark current are monitored.
The linearity and gain are also monitored but there is no plot yet available.
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