online: SH, Eric, Kris, Graca, Jacques

Regrets: Maurizio

=== Notes: ===

__E->B Coupling__ \\
  * Eric [[https://zzz.physics.umn.edu/ipsig/beams_and_cl_1|posted analysis of beams that Karl sent]]. These are two orthogonal detectors at the center of the focal plane. 
  * He finds that, as expected, there is no Q->U coupling and no E->B coupling. So far all looks good, as expected. 
  * Next step: do the same for an off-axis beam. 
  * **SH will contact Karl. The plan is to generate a 155 GHz beam at the location of the beam on the focal plane, and a ~40 GHz beam more toward the edge.**
  * **SH will check the simulations parameters listed on the wiki.**
  * Kris+Jacques note that these simulations do not include sampling and time constant effects. SH says this is a second priority. 
  * Kris: what do the GRASP simulations include? SH: two reflectors and a stop. Don't expect shields to affect main lobe Q->U coupling. They should affect the far sidelobes. 

__Far Sidelobes__ \\
  * As far as Shaul knows, Karl provided far sidelobes to Andrea/Julian. What is the status? 
  * **SH will check with Andrea/Julian**

__Map Simulations__ \\
  * Andrea is rerunning the map simulations
  * Kris says that 2 year simulations is less useful than 2 independent 1-year simulations. He wants to check map differences. **SH will relay**
  * We also discussed two different goals: 4 detector maps with single detector sensitivity, which will be useful for assessing calibration uncertainties; and, separately, full band sensitivity, which is useful for assessing band sensitivity to CMB.  Kris advocates for having both. **SH will relay**