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Agenda/Notes from Systematics WG telecon July 19 2017

on the call: Brendan, Paolo, Colin, Julian,

1. S4 tools (Colin)
2. Planck low ell polarization paper Planck intermediate results XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth (Brendan)
   • Summary plots
     • Fig 17: estimates of HFI systematic errors in EE auto-spectra vs. projected noise
     • Fig 18: null tests of HFI detectors
     • Fig 23: LFI systematic errors
   • Specific plots
     • Fig 2: noise PSDs and CSDs: correlated cosmic ray hits; Fig A.1 shows this propagated to TT/EE/BB residuals.
     • Fig 4: far sidelobe pickup: propagated physical optics models. (note: Physical optics models were not incredibly accurate)
     • Fig 9: residual ADC nonlinearity with gain correction leaves low ell polarization residuals: see Fig B.13 for what it looks like on the sky
     • Fig 10: “Empirical transfer function” unknown systematic
     • Fig 13: relative (detector to detector) gain measured from dipole to better than 1e-5 level
     • Fig 14: ground-based vs. sky-based bandpass leakage correction
     • Fig 30: estimated foreground residuals in HFI
     • Fig A.2: HFI warm readout drifts propagated to residual power spectra
3. Systematics List (Ranajoy, Joy) types_of_systematics.pdf
4. CORE systematics paper hit the arxiv last week (Paolo)
5. Any other business