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SPHERE IFS
Quality Control: spectrum position calibration |
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IFS spectra position raw frame is acquired in IFU mode and shows broad band lamp spectra (an IFU flat field) to determine the identification and position of the spectra. The recipe generates one product with different extensions. Further recipes of the calibration cascade essentially append more and more extensions to this product with additional information
QC parameter counts come per per prism (2). QC1 parameters
Trending The format offset, the scale and the number of found spectra is trended. History 2015-11-27: There was a 6.2 mag earth quake on 2015-11-27, which caused a shift of the OFFSET_X values by 0.6 pixel. The non-linear relation between the offset and the optical bench temperature before the EQ event is shown as a dashed line, the post EQ empirical relations are shown as solid lines and are: YJ: OFFSET_X(Tbench) = 4.007 + 0.111 * Tbench - 0.00848 * Tbench * Tbench YJH: OFFSET_X(Tbench) = 7.159 + 0.0948 * Tbench - 0.00755 * Tbench * Tbench 2017-04-05: The processing strategy was modified. SPOS calibrations are no longer processed using a IFS master dark. As a consequence the pipeline reports a different number of found spectra.
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