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online: Eric, Brendan, Shaul, Maurizio

Agenda

• Updates
  • Do we have simulated main beams? Eric wants to take a look at the cross-polar beam.
  • Eric recently learned that in Litebird, the peak of the U beam for GRASP sims of the main beams is something like 10% of the peak of the I beam map. This is much larger than simulations for Planck HFI and LFI (which was < 1% peak) and was thus determined to not be a problem. Being very far off-axis might be the issue.
  • There are two effects: 1. Calibration will correct any “constant” effect. so how accurately do we need to calibrate? 2. to what effect I/Q/U beams maps are the same.
  • Can we find a main lobe GRASP simulation for PICO that we can look at?
• Systematics section outline