Keck-DataReductionPipelines / KPF-Pipeline

KPF-Pipeline

Home Page:https://kpf-pipeline.readthedocs.io/en/latest/

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RV is inconsistent between Red and Green CCDs

howardisaacson opened this issue · comments

Looking at the Cross correlations in the QLP, the red and green CCDs a small offset on the plots, about 4 km/s. I cannot tell if this is a plotting issue , has to do with the new WLS in the post-servicing mission, or is something else. example

red_ccd_hip94931_ccf_shifted green_ccd_hip94931_ccf_ok

It would be instructive to learn which one is "right" based on comparisons with systemic velocities measured by HIRES or other facilities.