Currently the telluirc standard stars and the flux standard stars are processed like science data observed in the same mode.

QC1 parameters

• avg_<ij> (QC1 database table xshooter_night_ifu column avg_<ij> with <ij> = 12,23,13 )
  gives the average difference between the traces in slice i and j in the constructed merged cube.
• med_<ij> (QC1 database table xshooter_night_ifu column med_<ij> with <ij> = 12,23,13 )
  gives the median difference between the traces in slice i and j in the constructed merged cube.
• rms_<ij> (QC1 database table xshooter_night_ifu column rms_<ij> with <ij> = 12,23,13 )
  gives the rms of the difference between the traces in slice i and j in the constructed merged cube.

QC1 parameters

• npix_high (QC1 database table xshooter_night_ifu, column npix_high)
  gives the maximum number of highly exposed pixels (>60000 ADU for UVB/VIS) in the raw data. These pixels are not saturated but very likely significantly non-linear in their response.
• npix_sat (QC1 database table xshooter_night_ifu, column npix_sat)
  gives the number of saturated pixels (65535 ADU for UVB/VIS, 0 for NIR) in the raw data. The correct implementation for NIR data has been done only from version 0.9.8 on, but unfotunately also unsaturated pixels may have a flux of 0 or less in NIR raw data.
• fpix_sat (QC1 database table xshooter_night_ifu, column fpix_sat)
  gives the fraction of saturated pixels (65535 ADU for UVB/VIS, 0 for NIR) in the raw data. The correct implementation for NIR data has been done only from version 0.9.8 on, but unfotunately also unsaturated pixels may have a flux of 0 or less in NIR raw data.