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Agenda/Notes from Systematics WG telecon July 19 2017

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
3. Systematics list (Ranajoy) types_of_systematics.pdf
4. CORE systematics paper hit the arxiv last week
5. Any other business