The target audience here is astronomers who will use the data. The description of each algorithm should include:
- a brief description of how the algorithm works
- performance estimates, if appropriate
- any caveats, if needed
- development status (if partially implemented or not yet implemented)
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Include:
- Doppler stability on timescales longer than 1 day
- consistency of wavelength solutions
- intranight drift corrections for wavelength solutions
- scattered light correction
- outlier rejection in spectral extraction
- sky subtraction
- telluric corrections
- Stellar activity indicators (see below)
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Include a description of how master stacks are made for bias, dark, flats, LFC, etalon, and ThAr.
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Include a note about RV header information
KPF does not yet have stellar activity indicators produced as a standard data product from the DRP. The Ca H & K spectrometer covers the Ca H & K lines and we expect the DRP to produce S-values on the Mt. Wilson scale. Future DRP developments are also expected to include code to generate other activity indicators (Ca IR triplet, Hα, etc.)
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Explain how the QC framework operates and describe the current status.
The DRP does not further process the data from the KPF Guider that are stored in FITS extensions in the L0 files. These data include a guider image summed over the spectrometer integration and a table of guiding corrections, flux measurements, and other diagnostics taken from real-time Source Extractor analysis of the guider frames (typically at 100 Hz speed).